bluuebunny/crossref_metadata_2025 huggingface dataset:
Do Circadian Rhythms Affect Adult Age-Related Differences in Auditory Performance?
Authors: Ezzatian Payam , Pichora-Fuller Margaret Kathleen , Schneider Bruce A.
Published: April 2010

Les effets de l’heure du jour ont été identifiés comme facteur de confusion potentiel dans la recherche portant sur la performance cognitive en fonction de l’âge. Les rythmes circadiens ont étés liés aux variations des mesures sensorielles en fonction de l’heure du jour; cependant, on en sait davantage sur l’effet des rythmes circadiens sur la vision que sur l’audition. On ne sait pratiquement rien en ce qui concerne les effets de l’heure du jour comme facteur de confusion potentiel dans les études portant sur le vieillissement auditif. L’objectif de la présente étude était de déterminer si les différences liées à l’âge observées dans l’exécution de tâches auditives étaient affectées par l’heure du jour. Un ensemble de quatre expériences auditives a été répété trois fois au cours d’une journée avec un groupe de jeunes adultes « du soir » et un groupe d’adultes aînés « du matin ». Les résultats reproduisent les constatations précédentes concernant les différences liées à l’âge, mais l’heure du jour n’affecte pas les résultats de base. Donc, l’heure du jour n’est pas un facteur de confusion sur les résultats observés dans des expériences de laboratoire typiques qui étudient le vieillissement auditif.
Types and Factor Structure of Barriers to Utilization of Health Services among Aging South Asians in Calgary, Canada
Authors: Lai Daniel W.L. , Surood Shireen
Published: April 2010

Souvent, les personnes aînés de groupes ethniques minoritaires éprouvent obstacles différents à l’access aux services de santé. Généralement, les études ont porté sur les groupes combinés d’immigrants âgés ou sur minorités ethno-culturels importantes, tels que les Chinois au Canada ou les Afro-américains et Latino-Américains aux États-Unis. Cette étude visait à examiner les types des facteurs qui constituent des obstacles à l’utilization des services de santé rencontrés à Calgary, Alberta, Canada, par les immigrés vieillissants d’Asie du Sud. Un sondage téléphonique a été utilisé pour rassembler des données d’un échantillon aléatoire d’immigrants d’Asie du Sud âgés de 55 ans et plus. L’analyse des éléments principaux a révélé quatre types principaux d’obstacles: l’incompatibilité culturelle; les attitudes personnelles; les problèmes administratifs dans la livraison et les défis posés par les circonstances.
Images of users and products shown during design processes increase users’ willingness to use the design outcome
Authors: Christensen Bo T.
Published: April 2010

Two studies tested whether introducing images to designers during the design process lead to more useful design solutions as evaluated by the end users’ willingness to use the final design. It was hypothesized based on theories in cognitive science and design that there were at least two paths from images to usefulness. One path concerns analogically transferring within-domain properties to the design solution. The other path concerns mentally simulating end-user characteristics and preferences and inclusion of the user in the resulting design. Study 1 supported that random images led to increased outcome usefulness, and supported both hypothesized paths, by using within-domain products and end-user images as input. Study 2 showed that the image categories competed for attention, and that the within-domain product stimuli attracted the most attention and was considered the most inspirational to the designers. The practical use of the technique may lead to only marginally original products perhaps limiting its applicability to incremental innovation.
Discursive design thinking: The role of explicit knowledge in creative architectural design reasoning
Authors: Al-Sayed Kinda , Dalton Ruth Conroy , Hölscher Christoph
Published: April 2010

The main hypothesis investigated in this paper is based upon the suggestion that the discursive reasoning in architecture supported by an explicit knowledge of spatial configurations can enhance both design productivity and the intelligibility of design solutions. The study consists of an examination of an architect's performance while solving intuitively a well-defined problem followed by an analysis of the spatial structure of their design solutions. One group of architects will attempt to solve the design problem logically, rationalizing their design decisions by implementing their explicit knowledge of spatial configurations. The other group will use an implicit form of such knowledge arising from their architectural education to reason about their design acts. An integrated model of protocol analysis combining linkography and macroscopic coding is used to analyze the design processes. The resulting design outcomes will be evaluated quantitatively in terms of their spatial configurations. The analysis appears to show that an explicit knowledge of the rules of spatial configurations, as possessed by the first group of architects can partially enhance their function-driven judgment producing permeable and well-structured spaces. These findings are particularly significant as they imply that an explicit rather than an implicit knowledge of the fundamental rules that make a layout possible can lead to a considerable improvement in both the design process and product. This suggests that by externalizing the design knowledge and restructuring it in a design model, creative thought can efficiently be evolved and stimulated.
A fix for fixation? Rerepresenting and abstracting as creative processes in the design of information systems
Authors: Zahner Doris , Nickerson Jeffrey V. , Tversky Barbara , Corter James E. , Ma Jing
Published: April 2010

Fixation prevents the associations that are bridges to new designs. The inability to see alternative solutions, or even to see how to map known solutions onto current problems, is a particularly acute problem in the design of software-intensive systems. Here, we explored two related ways of liberating fixated thinking: abstracting and rerepresenting. Although both techniques helped designers generate original ideas, not all the added ideas fit the problem constraints. We discuss ways the results might be used to generate reflective design aids that help designers to first generate original ideas and later prune them.
Modelling the risk of collision with power lines in Bonelli’s Eagle Hieraaetus fasciatus and its conservation implications
Authors: ROLLAN ÀLEX , REAL JOAN , BOSCH RAFEL , TINTÓ ALBERT , HERNÁNDEZ-MATÍAS ANTONIO
Published: April 2010

Power line casualties are considered one of the main causes of mortality in the endangered Bonelli’s Eagle Hieraaetus fasciatus, although little is known about factors involved in collisions with wires and their consequences at population level. We studied 18 radio-tracked individuals to determine the risk of collision with power lines at two spatial scales (flight height and span crossings). Through logistic regression modelling we found that the risk of collision was mainly determined by eagles’ home range use, being reduced in kernel 80%, kernel 95% and MCP respectively to 0.421, 0.114 and 0.032 times in comparison to risk associated to the 50% kernel area. In addition, the risk of collision increased in open habitats (around 1.5 times higher than in forested habitats) far from urban areas (2.345 times higher than near urban areas) that were good for hunting, and in cliff areas used for breeding and roosting, where eagles fly at a lower height (the probability of eagles flying at a low height was 1.470 times higher than in forested habitats). A significant positive correlation was found between territorial turnover rates and the risk ascribed to transmission lines with earth wires in 15 breeding territories. Moreover, this correlation had a higher significance for the 50% kernel area when transmission without earth wires and double circuit distribution lines were added, although no correlations were encountered for distribution lines. These results suggested that power line collisions might be more important than previously reported as a cause of mortality for the species and thus conservation actions should be applied in order to minimise their effects on population dynamics. Predictive models may be a useful tool in careful planning of new power line routes and the wire-marking of the existing ones. Kernel areas should be used rather than fixed radii given that distances from nests may not adequately match the risk of collision.
Observations on trade in laughingthrushes (Garrulax spp.) in North Sumatra, Indonesia
Authors: SHEPHERD CHRIS R.
Published: April 2010

The trade in laughingthrush species native to Indonesia is not carried out in accordance with Indonesian legislation and regulations. During 65 surveys carried out in bird markets in 1997–2008, more than 11,000 laughingthrushes representing 10 species were observed, including all five species native to Indonesia. Bird dealers claim that these species are becoming increasingly scarce in Indonesia due to over-harvesting for trade, especially the Sumatran endemic Black-and-white Laughingthrush G. bicolor and the Javan endemic Rufous-fronted Laughingthrush G. rufifrons. Indonesia has legislation in place to protect these species from over-exploitation, yet the illegal trade continues on a large scale, carried out openly in city bird markets. Enforcement of this legislation is critical in order to prevent these species from becoming perilously threatened.
Population estimates and habitat use by the Critically Endangered Taita ApalisApalis fuscigularisin south-eastern Kenya
Authors: BORGHESIO LUCA , SAMBA DAINA , GITHIRU MWANGI , BENNUN LEON , NORRIS KEN
Published: April 2010

The Taita ApalisApalis fuscigularis(IUCN category: Critically Endangered) is a species endemic to south-eastern Kenya. We assessed population size and habitat use in the three forest sites in which it is known to occur (Ngangao, Chawia and Vuria, totalling 257 ha). The estimate of total population size, derived from distance sampling at 412 sample points, ranged from 310 to 654 individuals, with the northern section of Ngangao fragment having 10-fold higher densities than Chawia (2.47–4.93 versus 0.22–0.41 birds ha−1). Ngangao north alone hosted 50% of the global population of the species. The highly degraded Vuria fragment also had moderately high densities (1.63–3.72 birds ha−1) suggesting that the species tolerates some human disturbance. Taita Apalis prefers vegetation with abundant climbers, but the predictive power of habitat use models was low, suggesting that habitat structure is not a primary cause for the low density of the species in Chawia. Protecting the subpopulation in the northern section of Ngangao is a priority, as is identifying factors responsible of the low abundance in Chawia, because ameliorating conditions in this large fragment could substantially increase the population of Taita Apalis.
The Taxonomy of multiseed Junipers (Juniperus sect.Sabina) in southwest Asia and East Africa (Taxonomic notes on Cupressaceae I)
Authors: Farjon A.
Published: April 2010

An extensive study of herbarium specimens and literature of arborescent multiseed Junipers (Juniperus L. sect. Sabina (Mill.) Spach) from SW Asia and E Africa, in preparation of a monographic volume “Drawings and Descriptions of Cupressaceae”, has led to a substantially revised concept of taxa and their distribution. A total of 18 species and 7 varieties were previously recognized in this group; most turned out to be synonyms. J. foetidissima var. pindicola Formanek, J. macropoda Boiss., J. procera Hochst. ex Endl., J. sabinoides Griseb., J. schugnanica Komarov and J. semiglobosa Regel were lectotypified; J. polycarpos K. Koch has been neotypified. The following taxa answering to the above circumscription are here recognized for the area: J. excelsa M.-Bieb., J. excelsa subsp. polycarpos (K. Koch) Takhtajan, J. foetidissima Willd., J. semiglobosa Regel, J. phoenicea L. and J. procera Hochst. ex Endl.
Gesneriaceae of the old World III. New species and varieties from Borneo, chiefly from Mt Kinabalu
Authors: Burtt B.L.
Published: April 2010

A new variety of Agalmyla tuberculala Hook. f. is described; it extends the range of the species from Mt Kinabalu, Sabah, to Mt Murud, N Sarawak. Five new species and four new varieties of Cyrtandra are described from Mt Kinabalu; there are also two new species of Cyrtandra from Sarawak.
Numerical taxonomic study on Turkish Lathyrus (Leguminoseae)
Authors: Dogan M. , Kence A. , Tigin C.
Published: April 2010

This study examines whether a satisfactory classification of Turkish Lathyrus species can be obtained from phenetic clustering based on external vegetative and floral morphological characters of herbarium specimens. Forty morphological characters for each species of the genus Lathyrus L. were scored and the data subjected to numerical taxonomic analyses. The results of this study suggest that there are basically nine sections (Orobus, Lathyrostylis, Aphaca, Nissolia, Orobon, Gorgonia, Clymenum, Cicercula and Lathyrus) which can be grouped under two subgenera, namely subgenus Lathyrus and subgenus Orobus, as far as the material belonging to 54 of the 58 species cited in Flora of Turkey allows. Sect. Gorgonia Dogan is described.
Boletes from South and East Central Africa – I
Authors: Watling Roy , Turnbull Evelyn
Published: April 2010

Fifteen boletes (Basidiomycotina) distributed in the following genera: Afroboletus (1), Aureoboletus (1), Boletellus (1), Gyroporus (2), Phlebopus (1), Phylloporus (1), Pulveroboletus (5), Suillus (1) Tuboseta (1), and Veloporphyrellus (1) are recorded from Zambia. Four of these collections cannot be assigned to any formerly documented stirps. Two new combinations are proposed and full descriptions of the other collections are given. Afroboletus azureotinctus and Veloporphyrellus africanus are described as new; Tuboseta brunneosetosa var. retipes is recorded from Cameroon & Zimbabwe in addition to Zambia.
EJB volume 50 issue 1 Cover and Front matter
Authors: Editor Journal
Published: April 2010

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EJB volume 50 issue 1 Cover
Authors: Editor Journal
Published: April 2010

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Notes relating to the Flora of Bhutan: XVIII. New taxa and a new combination in the Labiatae
Authors: Clement R. A.
Published: April 2010

Three new species and one new subspecies of Labiatae are described from the eastern Himalayan mountains: Isodon atroruber R. A. Clement, Anisochilus mitis R. A. Clement, Teucrium grandifolium R. A. Clement and Phlomis rotata Hook. f. subsp. bhutanica R. A. Clement. The new combination Marmoritis pharica (Prain) R. A. Clement is made.
The genus Ciminalis (Gentianaceae) in Pakistan and Kashmir
Authors: Omer Saood , Qaiser M.
Published: April 2010

The genus Ciminalis Adans. is being revised from Pakistan and Kashmir. The present investigation has revealed the presence of one new species: C. ballistanica Omer. Three specific combinations are made: C. harwanensis (G. Singh) Omer; C. karelinii (Griseb.) Omer and C. capitata (Buch.-Ham. ex D. Don) Omer and two infraspecific combinations are made: C. capitata (Buch.-Ham. ex D. Don) Omer var. strobiliformis (Clarke) Omer and C. capitata (Buch.-Ham. ex D. Don) Omer var. andersonii (Clarke) Omer. A key to the taxa, geographical distribution, specimens examined and notes on typification are also provided.
Thesmophora, a new genus of Stilbaceae from South Africa
Authors: Rourke J. P.
Published: April 2010

Thesmophora scopulosa Rourke (Stilbaceae) a monotypic genus endemic to the Ceres mountains, South Western Cape Province, South Africa, is described. It is characterized particularly by its pendulous ovules and 4-lobed corolla.
New names in Phyllopodium (Scrophulariaceae-Manuleae)
Authors: Hilliard O. M.
Published: April 2010

Phyllopodium Benth. subgen. Leiospermum Hilliard is newly described; Selago cephalophora Thunb., S. phyllopodioides Schltr., and Polycarena hispidula Thell. are transferred to Phyllopodium.
A new variety of Nepenthes reindwardtiana Miquel from Kalimantan, Borneo
Authors: Adam Jumaat Haji , Wilcock C. C.
Published: April 2010

A detailed description of Nepenthes reindwardtiana Miquel is provided, and its distribution is reviewed. One new variety, N. reindwardtiana var. samarindaiensis Adam & Wilcock, from Kalimantan in Borneo is described.
Preliminary checklist of non-agaricoid macromycetes in the Korup National Park, Cameroon and surrounding area
Authors: Hjortstam K. , Ryvarden L. , Watling R.
Published: April 2010

The identifications of taxa of larger fungi (basidiomycetes) covering collections from the Korup National Park, Cameroon is given with relevant details on the distribution elsewhere in the world if known. A few other records from the south western province are also given. Several rare and previously unrecorded fungi for the area are documented.
A Bibliography of Conifers - selected literature on taxonomy and related disciplines of the Coniferales, and especially of the families Cupressaceae (with Taxodiaceae) and Pinaceae. A. Farjon.
Authors: Gardner M. F.
Published: April 2010

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Pinaceae - drawings and descriptions of the genera Abies, Cedrus, Pseudolarix, Keteleeria, Nothotsuga, Tsuga, Cathaya, Pseudotsuga, Larix and Picea. A. Farjon.
Authors: Gardner M.F.
Published: April 2010

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lora of Eastern Saudi Arabia. J.P. Mandaville.
Authors: Miller A.G.
Published: April 2010

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EJB volume 51 issue 2 Cover and Front matter
Authors: Editor Journal
Published: April 2010

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Andrew John Charles Grierson (24 iv 1929 - 11 ix 1990)
Authors: Hedge I.C. , Long D.G.
Published: April 2010

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Notes relating to the Flora of Bhutan: XXIV. Juncaceae
Authors: Noltie H. J.
Published: April 2010

The following new taxa, combinations and synonymy in the genus Juncus from E Himalaya and SW China are proposed: J. bryophilus Noltie sp. nov.; J. spumosus Noltie sp. nov.; J. glaucoturgidus Noltie sp. nov.; J. hydrophilus Noltie sp. nov.; J. longiflorus (A. Camus) Noltie comb. & stat. nov.; J. duthiei (C.B. Clarke) Noltie comb. nov. of which the following are synonyms: J. rohtangensis Aswal & Goel, J. sikkimensis Hook.f. var. monocephalus Hook.f. and J. harae Miyam. & H. Ohba; J. bhutanensis Satake is reduced to synonymy of J leucomelas Royle ex D. Don, J. pseudocastaneus (Lingelsh.) Sam. to that of J. sikkimensis; J. tratangensis Satake to that of J. ochraceus Buchenau, J. unifolius A.M. Lu & Z.Y. Zhang to that of J. minimus Buchenau; J. phaeocarpus A.M. Lu & Z.Y. Zhang to that of J. grisebachii Buchenau; J. longibracteatus A.M. Lu & Z.Y. Zhang to that of J. kingii Rendle; J. luteocarpus Satake, the illegitimate J. albescens Satake and J. yoskisukei Goel to that of J. concinnus D. Don and J. bracteatus Buchenau to that of, J. benghalensis Kunth.J. perpusillus Sam. is reported new to Sikkim and Nepal; J. amplifolius A. Camus new to Bhutan, Sikkim and Nepal; J. trichophyllus W.W. Sm. new to Nepal and Bhutan; J. nepalicus Miyam. & H. Ohba new to Sikkim. J. uniflorus W.W. Sm. is lectotypified. Notes on J. spectabilis Rendle and J. biglumoides Hara are given.
Notes relating to the Flora of Bhutan: XXV. Boraginaceae. I. Onosma griersonii, a new species from Bhutan
Authors: Mill R. R.
Published: April 2010

The new species Onosma griersonii R. R. Mill (Boraginaceae) is described from Bhutan. The species belongs to O. sect. Maharanga (DC.) C. B. Clarke.
Notes relating to the Flora of Bhutan: XXVII. Gentianella griersonii, a new species from Bhutan
Authors: Aitken E. , Long D. G.
Published: April 2010

A new species of gentian, Gentianella griersonii E. Aitken & D.G. Long sp. nov. (Gentianaceae). endemic to Central and Northern Bhutan, is described. Its generic placement and differences from allied species are discussed.
EJB volume 52 issue 2 Cover and Back matter
Authors: Editor Journal
Published: April 2010

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The generic position of Caralluma dodsoniana
Authors: Bruyns P. V. , Meve U.
Published: April 2010

The generic position of Caralluma dodsoniana Lavranos (Asclepiadaceae) is investigated. It is concluded that a monotypic genus to accommodate it is unnecessary and that it should be incorporated into the genus Pseudolithos P. R. O. Bally as P. dodsonianus (Lavranos) Bruyns & Meve.
A new species and hybrid in the St Helena endemic genus Trochetiopsis
Authors: Cronk Q. C. B.
Published: April 2010

The discovery in historic herbaria of an overlooked extinct endemic from the island of St Helena is reported. The first descriptions of St Helena Ebony, Trochetiopsis melanoxylon (Sterculiaceae), and the specimens associated with them in the herbaria of Oxford University (OXF) and the Natural History Museum, London (BM), do not match living and later-collected material, and instead represent an extinct plant. A new name is therefore needed for living St Helena Ebony: Trochetiopsis ebenus Cronk sp. nov. The hybrid between this species and the related T. erythroxylon is also described here: Trochetiopsis × benjamini Cronk hybr. nov. (Sterculiaceae), and chromosome counts of 2n = 40 are reported for the hybrid and both parents for the first time. The re-assessment of the extinct ebony emphasizes the importance of historic herbarium collections for the study of species extinction.
A new species of Potentilla sect. Leptostylae from central Burma
Authors: Ikeda H. , Ohba H.
Published: April 2010

A new species of Potentilla sect. Leptostylae (Rosaceae), P. montisvictoriae, endemic to Mt Victoria, C Burma, is described. Potentilla montisvictoriae differs from P. leuconota D. Don in having free auricles on the stipules of the radical leaves, patent or descending hairs on the rachis and peduncles, obovate petals, styles longer than ovaries and entire or shallowly incised auricles on the stipules of the cauline leaves.
Stygiomyces and Pseudonitschkia: Two new genera of lichenicolous fungi
Authors: Coppins B. J. , Kondratyuk S. Y.
Published: April 2010

Two new genera, Stygiomyces (Coelomycetes) with type species S. galliformis on Pseudocyphellaria faveolata from Tasmania, and Pseudonitschkia (Dothideales) with type species P. parmotrematis on Parmotrema tinctorum and P. pseudotinctorum from South America (Paraguay, Venezuela), Africa (Ivory Coast, Malawi, South Africa) and Nepal, are described. Their placement and differences from similar genera are discussed.
Scarce Plants in Britain. Compiled and edited by A. Stewart, D. A. Pearman and C. D. Preston.
Authors: Noltie H. J.
Published: April 2010

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EJB volume 56 issue 2 Cover and Back matter
Authors: Editor Journal
Published: April 2010

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Dussia atropurpurea (Leguminosae-Papilionoideae), a new species from Central America and notes on sarcotesta coloration in Dussia systematics
Authors: Zamora N. , Pennington R. T. , Stirton C. S.
Published: April 2010

Dussia atropurpurea is a new species found in Costa Rica and Panamá. It differs from all other Dussia species in this region in its dark purple sarcotesta. The only other species of Dussia with a sarcotesta of this colour is the Amazonian D. tessmannii which is clearly distinct morphologically. Sarcotesta colour is an important character for species delimitation in Dussia, but is infrequently recorded.
Sedum ince (Crassulaceae), a new species from Southern Anatolia
Authors: 'T Hart H. , Alpinar K.
Published: April 2010

The newly described white-flowered annual Sedum ince closely resembles S. eriocarpum and the annual forms of S. hispemicum (S. longibracteatum), but differs from the former by its alternate instead of verticillate leaves, and from the latter by the 5-merous instead of 6 9-merous flowers and the ripe follicles which are divergent instead of patent and lack the distinct lips along the ventral suture. Molecular phylogenelic analyses indicate that S. ince is but distantly related to S. eriocarpum as well as to S. hispemicum. It belongs to a cytological distinct lineage of Sedum subgenus Gormunia sporting a basic chromosome number of x = 7. Within this lineage, however, S. ince holds a unique position and consequently it is classified in the monotypic S. series Elegans.
Passiflora formosa sp. nov., a hitherto misunderstood taxon in Passiflora subgenus Tacsonia (Passifloraceae) from Colombia
Authors: Ulmer T.
Published: April 2010

A new species of Passiflora is described from the Andes of Colombia. Passiflora formosa T. Ulmer is characterized by its densely tomentose ovary, the 5–7 petiolar glands and the large leaves which are up to 19cm long. It most closely resembles P. lanata and P. cuatrecasasii. The differences between these species are discussed.
The systematic position of Rhytidocaulon (Apocynaceae-Asclepiadoideae)
Authors: Bruyns P. V.
Published: April 2010

Rhytidocaulon P.R.O. Bally is reviewed. The relationships with other genera are discussed in the light of the character assessment carried out and it is suggested that it is closest to Caralluma R. Br. subg. Caralluma and Echidnopsis Hook. f. Descriptions of the genus and the eight known species are provided.
A reappraisal of the generic status of Gastrocotyle, Hormuzakia and Phyllocara(Boraginaceae) in the light of micromorphological and karyological evidence
Authors: Bigazzi M. , Selvi F. , Fiorini G.
Published: April 2010

The results of karyological analyses and SEM micromorphological observations on vegetative and reproductive structures of the critical genera Gastrocotyle, Hormuzakia and Phyllocara (Boraginaceae: Boragineae) are presented and discussed in relation to their taxonomic position within the tribe. Each of these monotypic genera is characterized by distinctive features in stigma morphology, papillar pattern, structure of faucal scales, development of the hairy annulus at the base of the corolla tube and ornamentation of the mericarp coat surface. G. hispida and H. aggregata showed 2n = 16 and complements of medium-sized and very large chromosomes, respectively. P. aucheri was characterized by a tetraploid set of 32 chromosomes including a group similar to those of Anchusa and a group closer to those of Nonea in terms of size and centromcric position. This species could have an allopolyploid origin, resulting from the hybridization of members of these two genera. Along with distinctive traits in inflorescence structure, fruit shape and pollen morphology, karyological and micromorphological characters determine sharp phenetic discontinuities from Anchusa, from which these plants should be kept generically separated. At the same time, the presence of relevant autapomorphies in each of the three genera prevents them from being merged in a single genus.
Three new species of Aeschynanthus(Gesneriaceae)
Authors: Mendum M.
Published: April 2010

Two new species of Aeschynanthus from Borneo, A. argentii Mendum and A. pseudohybridus Mendum, and one from Palawan (Philippines), A. batakiorum Mendum & Madulid, are described and illustrated.
Notes relating to the Flora of Bhutan: XXXVII. New species and records of Orchidaceae from Bhutan and India (Sikkim)
Authors: Pearce N. , Cribb P.
Published: April 2010

Three new species of Bhutanese orchids, Aphyllorchis sanguinea, Cheirostylis sherriffii and Hetaeria pelota, and one new Sikkimese species, Lecanorchis sikkimensis, are newly described. Their generic placement and affinities are discussed. A new combination in Cheirostylis is made for the Taiwanese Zeuxine tabiyahanensis Hayata. Records of five orchid species new to Bhutan are also presented.
The Biodiversity of African Plants: Proceedings of XlVth AETFAT Congress. Edited by L. J. G. van der Maesen, X. M. van der Berg, J. M. van Medenbach de Rooy.
Authors: Harris D.
Published: April 2010

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Exercises in Plant Disease Epidemiology. Edited by Leonard J. Francl and Deborah A. Nchcr.
Authors: Helfer S.
Published: April 2010

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Plant Crib 1998. T. C. G. Rich and A. C. Jermy. Botanical Society of the British Isles.
Authors: McKean D. R.
Published: April 2010

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Native American Ethnobotany. Daniel E. Moerman.
Authors: Milliken W.
Published: April 2010

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EJB volume 56 issue 3 Cover and Front matter
Authors: Editor Journal
Published: April 2010

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EJB volume 56 issue 3 Cover and Back matter
Authors: Editor Journal
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Two new species of Potentilla L. (Rosaceae) from SW Turkey
Authors: Duman H. , Mill R. R.
Published: April 2010

Two new species of Potentilla L. (Rosaceae) from SW Anatolia are described and illustrated: Potentilla nerimaniae H. Duman and P. davisii R. R. Mill & H. Duman.
Two new species of Campanula L. (Campanulaceae) from SW Turkey
Authors: Duman H.
Published: April 2010

Two new species of Campanula L. (Campanulaceae) from SW Anatolia are described and illustrated: Campanula yaltirikii H. Duman (sect. Tracheliopsis) and C. koyuncui H. Duman (sect. Rupestres).
Nonea pallens (Boraginaceae). a new addition to the flora of Turkey
Authors: Selvi F. , Bigazzi M.
Published: April 2010

Nonea pallens was recently collected by the authors in the Yildiz mountain region in Turkey-in-Europe. The species is new for the Turkish flora and the population marks the southern limit of the species range. Geographical and ecological details are given about the record locality, along with an original description and iconography of the Turkish specimens. Original material of N. pallens was traced in G, W and FI, allowing a lectotype to be selected. Finally, a karyological analysis provided new data about the systematic position of this poorly known species within the genus.
Old World Gesneriaceae: VI. Six miscellaneous notes
Authors: Burtt B. L.
Published: April 2010

I. Lenbrassia G.W. Gillett, which has a zygomorphic corolla and four didynamous stamens with anthers joined, is reduced to Fieldia A. Cunn., which has an actinomorphic corolla and four equal stamens with anthers free; the new combination, F. australiana, is made. II. Boea wallichii R.Br. is distinguished from B. hygrometrica (Bunge) R.Br. with which it has been confused. III. Cyrtandra oblongifolia sensu Kraenzlin is described as a new species, C. kalimantana, allied to C. oblongifolia (Blume) C.B.C1. but distinguished by its hairy leaves, fruits, calyx and corolla; the sterile specimens from Borneo quoted under Cyrtandra rufa Bakh.f. are tentatively referred to C. kalimantana. IV. A specimen of Cyrtandra from the Natuna Islands is identified with C. suffruticosa Ridley from Pulau Tioman and the Malay Peninsula; in contrast two other Gesneriaceae from these islands are of Bornean affinity. V. Didymocarpus pteronema is a new species from Tenasserim province of Burma (= Myanmar): it is anomalous in its campanulate corolla and filaments with unilateral membranous wing. VI. Streptocarpus huamboensis is a new species from Angola allied to S. rhodesianus S. Moore.
Meiotic studies of some Aegilops (Poaceae) species and populations in Iran
Authors: Sheidai M. , Saeed A. M. , Zehzad B.
Published: April 2010

Thirteen populations of three Aegilops (Poaceae) species were analysed for meiotic characters including chiasma frequency and distribution, as well as chromosomal association and segregation. Populations of A. triuncialis and A. cylindrica possessed n= 14 chromosome number (tetraploid) while populations of A. umbellulata possessed n = 7 (diploid). Tetraploid species showed diplontic behavior and formed bivalents only. Cluster analysis of meiotic data showed distinctness of the species, although variations were observed in the chiasma frequency and distribution among different populations of each species. Cytomixis and chromosome elimination led to ancuploid and unreduced pollen mother cell formation in the species studied.
Pteridophyte flora of Lesvos (East Aegean Islands. Greece)
Authors: Bazos I. , Yannitsaros A.
Published: April 2010

New data on the Pteridophyta of Lesvos (East Aegean Islands, Greece) contributing to the knowledge of their distribution and ecology are given. The presence of 24 taxa (species and subspecies) belonging to 16 genera and 7 families is confirmed whilst the occurrence of 4 more previously recorded is considered as doubtful or needs more recent confirmation. Isoetes duriei Bory, Pilularia minuta Durieu and Polystichum setiferum (Forsskål) Woynar appear to be new records for the East Aegean Islands, and Isoetes histrix Bory is new for the island of Lesvos. Furthermore the presence on Lesvos of some rare species (i.e. Notholaena marantae (L.) Desv. and Ophioglossum vulgatum L.) is confirmed. Critical comments on most of the taxa are made and dot maps of their distributions are presented. With regard to the rare species and their habitats, a need for urgent conservation measures is identified.
Evolution and Speciation of Island Plants. Edited by Tod F. Stuessy & Mikio Ono.
Authors: Bateman R. M.
Published: April 2010

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Microfungi on Land Plants: an identification handbook. New enlarged edition. Martin B. Ellis & J. Pamela Ellis.
Authors: Helfer S.
Published: April 2010

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John Lindley, 1799-1865, Gardener-Botanist and Pioneer Orchidologist. Edited by W. T. Stearn.
Authors: Noltie H. J.
Published: April 2010

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Psilocybin Mushrooms of the World: an identification guide. Paul Stamets.
Authors: Rutter G.
Published: April 2010

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EJB volume 49 issue 1 Cover and Front matter
Authors: Editor Journal
Published: April 2010

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EJB volume 49 issue 1 Cover and Back matter
Authors: Editor Journal
Published: April 2010

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Keys to the Gesneriaceae of China
Authors: Wentsai Wang , Kaiyu Pan , Zhenyu Li
Published: April 2010

The keys to the genera of Gesneriaceae, and to the species within each genus, prepared for Flora Reipublicae Popularis Sinicae are here presented in English translation. The keys are prefaced by a discussion on the phytogeography of Gesneriaceae within China and a note on the recognition of the evolutionary tendencies that underlie the revision; both are by Wang Wentsai. The keys have been translated by Professor Wang and edited, with a few supplementary notes and references, by B. L. Burtt, who also contributes an Introduction.
Two new species of Streptocarpus from Southern Africa
Authors: Hilliard O. M.
Published: April 2010

An account of Streptocarpus was written for inclusion in Flora of Southern Africa; now that that publication has been suspended, two new names are validated here. The plants were discussed under S. rimicola in Hilliard & Burtt, Streptocarpus. An African plant study, 240–241 (1971).
Notes on Dioscorea kamoonensis and related taxa
Authors: Guan K. Y. , Chamberlain D. F.
Published: April 2010

A historical outline of Dioscorea kamoonensis (Dioscoreaceae – Sect. Lasiophyton) and related taxa is provided. Four species are recognized in the present paper: D. kamoonensis; D. delavayi; D. ochroleuca, nom. el slat. nov. and D. brevifolia, stat. nov. Scanning electron micrographs (SEMs) of pollen and hairs from the four species are also given.
A new species and a new combination in the genus Ephedra from Arabia
Authors: Freitag H. , Maier-Stolte M.
Published: April 2010

Ephedra milleri Freitag & Maier-Stolte (Ephedraceae) from Dhofar (Oman) is described. E. sinaica Riedl, described as an endemic from S Sinai and meanwhile collected from numerous localities in higher altitudes of the western escarpment of Arabia is reduced to a subspecies of E. pachyclada.
Macromycetes of Mediterranean Turkey
Authors: Işiloǧlu Mustafa , Watling Roy
Published: April 2010

Eighty one species of larger fungi are recorded from Mediterranean Turkey, many of which are noted for the first time either for Turkey as a whole or the southern region. Notes on the distribution, where appropriate, are added especially for the most significant collections. All the major families of agarics are included in addition to some gasteromycetes, members of the Polyporales, and a few ascomycetes.
A revision of Geranium L. in south-west China
Authors: Yeo P. F.
Published: April 2010

Forty-two species of Geranium from Yunnan, Sichuan, Gansu, W Hubei and adjacent territories are keyed and described. Four new species are published: G. canopurpureum Yeo, G. duclouxii Yeo, G. fargesii Yeo and G. retectun Yeo. One previously described species is reduced to varietal rank (as G. hupehanum var. wilsonii (Knuth) Yeo) and many others are reduced to synonymy. The name G. platyanthum Duthie is taken up for G. eriostemon Fischer ex DC, which is a later homonym of G. eriostemum Poiret. A catalogue of collectors' numbers is supplied.
Ormosolenia restored
Authors: Pimenov Michael G.
Published: April 2010

Ormosolenia Tausch is shown to be a separate monotypic genus of the Umbelliferae, distinct from Peucedanum L. A new combination, O. alpina (Sieber ex Schultes) M. Pimenov is proposed for the only species of the genus which is endemic to the eastern part of the Mediterranean.
New names and combinations in Jamesbrittenia (Scrophulariaceae - Manuleae)
Authors: Hilliard O. M.
Published: April 2010

A key is given to distinguish Jamesbrittenia, Camptoloma and Lyperia from Sutera, a genus with which they have hitherto usually been equated. Twenty one species and one subspecies of Jamesbrittenia are newly described, and 63 new combinations are made (two at varietal level).
An analysis of the floristic composition of 26 cerrado ares in Brazil
Authors: Ratter J. A. , Dargie T. C. D.
Published: April 2010

An analysis was made of the floristic composition of 26 cerrado areas in Brazil, encompassing most of the latitudinal and much of the longitudinal extension of this vegetation. A total of 485 species of trees and large shrubs occurred in these areas but those present at only one site were eliminated so that the number analysed was reduced to 255. Numerical classification and ordination, followed by an environmental/geographical interpretation of site patterns, were used in the analysis. The analyses revealed three major gradients of variation associated with latitude, longitude and, most strongly, soil-type (mesotrophic or dystrophic). The study demonstrated that cerrado vegetation is extremely heterogeneous: none of the 485 species recorded occurred at all sites and only 27 were present at 15 or more. Further knowledge of this distributional heterogeneity is essential for the planning of representative conservation areas of this extremely endangered vegetation.Uma análise foi feita da composição florística de 26 áreas de cerrado no Brasil, alcançando a maioria da extensão latitudinal e uma grande parte da distribuição longitudinal desta vegetação. Um total de 485 espécies de árvores e arbustos grandes ocorreu nestas áreas mas as registradas em um só local foram eliminadas e por isso o número analisado se reduziu a 255. Uma classificação numérica e ordenação, seguida por uma interpretação ambiental/geográfica de padrões dos sítios, foram usadas na análise. As análises mostraram tres gradientes maiores da variaç˜o associadas com latitude, longitude e, mais fortemente, com características do solo (meso- ou distrófico). O estudo mostrou que a vegetação do cerrado é extremamente heterogenêa: nenhuma das 485 espécies registradas ocorreu em todas as localidades e somente 27 estiveram presentes em 15 ou mais. Um conhedmento mais amplo dessa heterogeneidade da distribuição é necessário para a delimitaçāo de áreas representativas para a conservaçāo dessa vegetaçāo altamente ameaçada.
EJB volume 50 issue 3 Cover and Back matter
Authors: Editor Journal
Published: April 2010

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A revision of Rhododendron section Pentanthera
Authors: Kron K. A.
Published: April 2010

Rhododendron sect. Pentanthera G. Don (Ericaceae) comprises a group of closely related, highly ornamental plants which are commonly called ‘azaleas'. Thirteen of the fifteen species recognized in this section are indigenous to North America. One species (R. molle) is native to Japan and China, and one species (R. luteum) is indigenous to the Caucasus region. Phylogenetic analysis of the species within the section indicates that R. molle is the sister to the rest of the section. It is the sole member of R. subsect. Sinensia. The remaining species form a monophyletic group recognized as R. subsect. Pentanthera. Within this subsection the presence of a blotch on the upper corolla lobe defines two primarily orange to red-flowered groups. The first group has a Tertiary Period disjunct distribution and comprises R. luteum, R. austrinum and R. occidentale. The second group is indigenous to eastern North America and comprises R. calendulaceum, R. cumberlandense, R. flammeum, R. prunifolium and R. alabamense. In both groups the cladistically basal species has white flowers with a yellow blotch on the upper corolla lobe (R. occidentale, R. alabamense, respectively). The pink to white early flowering species R. canescens, R. periclymenoides and R. prinophyllum do not form a monophyletic group.Phenetic analyses indicate that the eastern Asian taxon, R. molle, is best recognized as one species with two geographical subspecies; Rhododendron prinophyllum is quite distinct from R. canescens and R. periclymenoides. The latter two species are very similar morphologically, but their similarities are due to the retention of primitive characters and they should be recognized as distinct species. Rhododendron calendulaceum can be distinguished from R. cumberlandense using a combination of morphological and phenological characters. The various taxa previously segregated out of R. viscosum are merely extreme forms of a widespread and variable species and are not given any formal rank. No subspecific taxa are recognized for R. occidentale. Distribution maps, keys to the species, species descriptions and specimen citations are included.
Variation in chromosome number in the Manuleae (Scrophulariaceae) and its cytotaxonomic implications
Authors: Jong K.
Published: April 2010

Chromosome numbers for 11 genera and 36 species in the predominantly South African tribe Manuleae (Scrophulariaceae) are presented, the majority being first reports. The basic numbers of the genera form a dysploid series, x = 6, 7, 8, 9. The somatic number of most of the species is diploid, ranging from 2n = 12 to 2n = 18; that of Jamesbrittenia, 2n = 24, is probably of polyploid derivation. The highest somatic number encountered in this survey is that in Camptoloma lyperiiflorum, with 2n = c.56, which, taken in conjunction with a published count of 2n = 28 for another species of Camptoloma, is octoploid based on x = 7. This is the only example, so far, of intrageneric polyploidy in the Manuleae. The somatic number in certain genera appears to be constant over some subgeneric divisions (e.g. Jamesbrittenia, 2n = 24), but variable in others (e.g. Sutera, 2n = 12, 14). The variation in chromosome number observed in this study parallels and corroborates the redefinition of generic boundaries proposed by O. M. Hilliard. One species of Selago (in the tribe Selagineae) was also included in this survey for cytological comparison with Tetraselago (Manuleae).
Flora Malesiana. Series I - Spermatophyta. Volume 11, part 2 (pp. 227-418). Foundation Flora Malesiana, Rijksuniversiteit te Leiden (Rijksherbarium/Hortus Botanicus).
Authors: Noltie H. J.
Published: April 2010

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EJB volume 51 issue 1 Cover and Front matter
Authors: Editor Journal
Published: April 2010

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EJB volume 51 issue 1 Cover and Back matter
Authors: Editor Journal
Published: April 2010

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Studies in the Flora of Arabia: XXVII. Some new taxa from the Arabian Peninsula
Authors: Miller A. G. , Nyberg J. A.
Published: April 2010

The following new taxa from the Arabian Peninsula are described: Diplotaxis kohlaanensis A. Miller & J. Nyberg (Cruciferae), Phragmanthera austroarabica A. Miller & J. Nyberg (Loranthaceae), Commicarpus adenensis A. Miller (Nyctaginaceae), Forsskaolea griersonii A. Miller & J. Nyberg, Parietaria umbricola A. Miller (Urticaceae), Trianthema sheilae A. Miller & J. Nyberg (Aizoaceae), Reseda pentagyna Abdallah & A. Miller (Resedaceae), Aerva artemisoides subsp. batharitica A. Miller & J. Nyberg (Amaranthaceae). The following new combinations are made: Boerhavia elegans subsp. stenophylla (Boiss.) A. Miller (Nyctaginaceae), Oncocalyx doberae (Schweinf.) A. Miller & J. Nyberg (Loranthaceae).
A phenetic investigation of Vicia section Peregrinae Kupicha (Leguminosae, Papilionoideae, Vicieae)
Authors: Maxted N.
Published: April 2010

The taxonomic relationships between the four species of Vicia L. sect. Peregrinae Kupicha (1976) have been studied using 174 morphological characters. The results of the phenetic study are considered in conjunction with a literature review of the taxonomic history, cytology, phytogeography and ecology of the taxa involved. It is concluded that V. mollis is peripheral within sect. Peregrinae, and an investigation of the taxa of both sections Peregrinae and Hypechusa shows the species to be a natural member of sect. Hypechusa, to which it is transferred. The relationship between the three remaining species of sect. Peregrinae is discussed, and a key and conspectus to taxa are provided.
Nees, Arnott and some forgotten Acanthaceae types from Asia
Authors: Wood J. R. I.
Published: April 2010

During the 1830s Walker Amott sent a collection of Asian Acanthaceae to be identified by Nees von Esenbeck in Breslau. This material was used by Nees as the basis for describing one genus and 22 new species in Hooker's Companion to the Botanical Magazine in 1836. Both the publication and the collection were subsequently forgotten. During the course of work on the Flora of Ceylon the types were rediscovered in the general herbarium at Edinburgh. The present paper links Nees’ names with the types in Edinburgh, lectotypifying where appropriate and commenting on the taxonomic status of each species.
Roses of Great Britain and Ireland: B.S.B.I. Handbook no. 7. G. G. Graham and A. L. Primavesi; illustrated by Margaret Gold; distribution maps prepared by the Biological Records Centre, Institute of Terrestrial Ecology.
Authors: Ballantyne G. H.
Published: April 2010

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Erratum
Authors: Editor Journal
Published: April 2010

Jong, K. (1993). Variation in chromosome number in the Manuleae (Scrophulariaceae) and its cytotaxonomic implications. Edinb. J. Bot. 50(3): 365–379.In Figure 2 (p. 373):Fig. 2 E should be labelled 2 FFig. 2 F should be labelled 2 E.
Boletes from South and East Central Africa – II
Authors: Watling R. , Turnbull E.
Published: April 2010

Nineteen boletes (Basidiomycotina) are recorded from Zambia. They belong to the tylopiloid and xerocomoid elements. Three of these boletes are described as new: Tylopilus ochraceosquamosus Watling, T. perplexus Watling & Turnbull and T. zambianus Watling. Another four cannot be assigned to formally recognized taxa, and the provisional name Tylopilus conspicuocystidiata is adopted for one of them. Two new combinations are made: Tylopilus brunneirubens (Corner) Watling & Turnbull and T. nigropurpureus (Corner) Watling.
A note on Colpoon (Santalaceae)
Authors: Hilliard O. M.
Published: April 2010

When, in 1989, I wrote an account of Santalaceae for Flora Zambesiaca (which account will not be published for several more years), I had no hesitation in including Colpoon Berg, in Osyris L., as A. De Candolle (1857) had originally done. The morphology of stem and leaf is identical: distinctive flattened twigs, branchlets ribbed by vascular strands running out into the midrib of the leaf, and both leaf surfaces closely and minutely white-dotted (these dots are probably the ‘abundant cluster and sphaerocrystals noted in the mesophyll of Osyris abyssinica’ by Metcalfe & Chalk (1950, p. 1197)).
EJB volume 52 issue 1 Cover and Front matter
Authors: Editor Journal
Published: April 2010

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