bluuebunny/crossref_metadata_2025 huggingface dataset:
Mallomonas palaestrica sp. nov. (Synurophyceae), a new member of sect. Torquatae from Denmark
Authors: Hansen P. , Johansen J. E. , Skovgaard A. , Kristiansen J.
Published: March 2008

Mallomonas paluestrica sp. nov., a new member of sect. Torquatae ser. Pumilae, was found in a small Danish pond and is described and illustrated with TEM and SEM micrographs.
A new species of Phyllanthus (Euphorbiaceae) from Somalia
Authors: Gilbert Michael G. , Thulin Mats
Published: March 2008

Phyllanthus lunifolius sp. nov., a completely prostrate dwarf shrub from limestone rocks in the coastal part of central Somalia, is described and illustrated.
Larsenaikia, a new genus of the Rubiaceae from Australia
Authors: Tirvengadum D. D.
Published: March 2008

A new genus,Larsenaikia, (tribe Gardenieae, sensu stricto) is described on material from Queensland and the Northern Territory for three endemic Australian species ofGardenia, recently transferred toKailarsenia. Description and affinities of the new genus andKailarsenia, as well as distribution map and illustrations are given. Keys to the species of bothLarsenaikiaandKailarseniaare provided.Larsenaikiahas three species confined to tropical Australia;Kailarseniawith six to seven species has a wider distribution in tropical Asia.
A revision of Cycniopsis (Scrophulariaceae)
Authors: Backlund Anders , Hunde Asfaw , Lågström Elisabeth
Published: March 2008

The genus Cycniopsis is reexamined. Generic and specific delimitation is discussed with respect to morphological characters, including seed structures studied by scanning electron microscopy. A hierarchical key to Cycniopsis and related genera is presented.

Two species are recognised, C. humifusa and C. humilis comb. nov. Several names are reduced to synonymy, and three lectotypes and one neotype are selected. Both species are illustrated, and a distribution map is provided.
The Orchids of Indochina
Authors: Seidenfaden Gunnar
Published: March 2008

Following the treatment of the orchid flora of Thailand in the series “Orchid Genera in Thailand” and the recent paper by G. Seidenfaden & J. J. Wood 1992 on “The Orchids of Peninsular Malaysia and Singapore”, the present paper aims at filling the gap in our knowledge of the orchids of the Southeastasiatic mainland by compiling a survey of the orchids of Indochina, here understood as covering the areas of Laos, Cambodia and Vietnam. It is found that the family is represented here by 140 genera with a total of some 800 species. Keys to their identification are supplied, and the enumeration is complemented by 306 analytical figures and 32 colourplates. Two new monotypic genera, Deceptor and Cleisostomopsis, and 12 new species are proposed.
Hypnea furnariana sp. nov. (Hypneaceae, Rhodophyta) from eastern Sicily (Mediterranean Sea)
Authors: Cormaci M. , Alongi G. , Dinaro R.
Published: March 2008

A new species of the genus Hypnea Lamouroux, H. furnariana sp. nov., from the eastern coast of Sicily (Mediterranean Sea) is described. Plants form entangled mats with anastomosing branches. Branches and branchlets are subulate and much more slender than the main axes. In transverse section the axial cells are very small, while pericentral cells are quite larger and rounded or slightly oblong‐shaped. Tetraspo‐rangial swellings (annular or unilaterally exserted) and cystocarps are localized in the sub‐apical or in the middle part of fertile branches. A comparison was made with the closely related species H. spinella and H. pannosa.
Synopsis of Anthericum and Chlorophytum (Anthericaceae) in the Horn of Africa, including the description of nine new species
Authors: Nordal Inger , Thulin Mats
Published: March 2008

Three species of Anthericum and 32 species of Chlorophytum are recognized in Ethiopia and Somalia. Nine new species of Chlorophytum are described, illustrated and mapped: C. applanatum, C. filifolium, C. hiranense, C. littorale, C. nervosum, C. pendulum, C. petraeurn, C. pterocarpum, and C. ramosissimum. Several names are reduced to synonymy and lectotypifications are made in a number of cases. A key to the taxa is presented. One of the species of Anthericum and 16 of the species of Chlorophyturn are confined to the Somalia‐Masai Region and endemic or near‐endemic in the study area, while one Anthericum and two Chlorophytums are Afromontane endemics or near‐endemics in Ethiopia. Most of the other species are more or less widespread mainly Sudano‐Zambezian elements.
Two new species of Boesenbergia (Zingiberaceae) from Borneo
Authors: Poulsen Axel Dalberg
Published: March 2008

Two new species of Boesenbergia are described from Temburong District, Brunei, Borneo and their relationships are discussed. Additional chromosome counts of Bosenbergia are included.
Chalara lichenicola n. sp. (Deuteromycotina), a lichenicolous hyphomycete from Svalbard
Authors: Christiansen M. Skytte
Published: March 2008

The new species, Chalara lichenicola, is characterized by its diminutive, pale brown, 20–47 pm long phialophores arising without any superficial mycelium from the basal parts of the podetium of the lichen Cladonia gracilis as well as from the immature basidiomata of a Tremella sp., likewise parasitic (or saprophytic?) on the same podetia. The phialoconidia are hyaline, unicellular, cylindrical with truncate ends. 2.54.0 × 0.5–0.8 Bunim. It is the first lichenicolous hyphomycete to be included in the form‐genus Chalara.
Chaenothecopsis in the Russian Far East
Authors: Titov A. , Tibell L.
Published: March 2008

Seventeen species of Chaenothecopsis are reported from the Russian Far East. Chaenothecopsis amurensis, C. asperopoda, C. golubkovae and C. ussuriensis are described as new. C. brevipes is new to Eurasia and C. haematopus, C. koerberi and C. rubescens are new to Asia. A key, descriptions and illustrations of the species, habitat ecology and distribution are presented.
Mallomonas connensis sp. nov., a new species of Synurophyceae from a small New England lake, U.S.A.
Authors: Siver Peter A. , Marsicano Laurence J.
Published: March 2008

A new species of Mallomonas, M. connensis sp. nov., is described from a eutrophic locality in Connecticut, U.S.A. with a relatively high pH and specific conductance. Cells are covered with bristles and have scales that are orientated with their longitudinal axes perpendicular to the longitudinal axis of the cell. Each scale of the apical ring is highly asymmetrical with a forward projecting triangular shaped extension; collectively the extensions form an opening through which the flagellum emerges. Body scales possess a prominent Ushaped ridge that transverses the scale near the center and extends forward. A series of more or less concentric ribs cover the U‐shaped ridge and dome, and circumscribe a more light and electron transparent region. The combination of characters of the bristles is unique among taxa of Mallomonas.
The comparative biology of the closely related Senecio nebrodensis and S. viscosus, a narrow endemic and a widespread ruderal
Authors: Emig Wolfram , Kadereit Joachim W.
Published: March 2008

The closely related Senecio nebrodensis, a perennial herb from four mountain ranges in Spain, and S. viscosus, an annual herb widespread in Europe, are being compared by the study of herbarium material and comparative cultivation. In cultivation, S. nebrodensis behaved as an annual, completing its life cycle within a shorter period of time than S. viscosus. The formation of basal leaf rosettes is much more pronounced in S. nebrodensis than in S.viscosus. The main difference between the two species, however, is their breeding system. While S. nebrodensis is self‐incompatible, S. viscosus is self‐compatible. Differences in reproductive morphology (mainly size and number of ray florets) are suggested to be related to this difference in breeding system. Despite differences in disc floret number and capitulum number observed in the cultivated material, the potential reproductive output of the two species is roughly comparable. Senecio viscosus is believed to be a descendant of S. nebrodensis. It is postulated that the former differentiated from thelatter at the latest in glacial or early postglacial times. Following postglacial climatic changes, S. nebrodensis retreated into high altitudes, while S. viscosus, adapting to these changes, expanded northwards. The strikingly different degree to which the two species exploit man‐made disturbances is interpreted as being due to a difference in opportunity: In its climatically defined range S. nebrodensis experiences little disturbance. Senecio viscosus, on the other hand, inhabits areas strongly disturbed by human activity. It is concluded that S. viscosus shows no obvious adaptations to its habitat, but is well preadapted.
New taxa of foliicolous lichens from Western Europe and Macaronesia
Authors: Serusiaux Emmanuel
Published: March 2008

One genus and four species of foliicolous lichens are described as new from Western Europe and Macaronesia: Bapalmuia, B. kakouettae, Byssoloma aptrootii, Gyalecti‐dium setiferum, and Scoliciosporum curvaturn. The following combinations are introduced: Bapalmuia marginalis, B. palmularis, B. rubicunda, Byssoloma lambino‐nii, and Fellhanera michaeliana.
Review
Authors: Nielsen Ivan
Published: March 2008

Book reviewed in this article:

Scripta Botanica Belgica volume 1, 199 pages, ed. E. Robberecht. 1992. ‐ Anderson, L., A Provisional Checklist of Neotropical Rubiaceae

Ibid. vol. 2, 153 pages, ed. E. Robberecht. 1992. ‐Ghanzafar, S. A., An annotated catalogue of the vascular plants of Oman and their vernacular names

Ibid. vol. 3, 376 pages, ed. C. Puff. 1991. ‐ The genus Paederia L. (Rubiaceae‐Paedeneae): a multidisciplinary study
Ranunculus penicillatus in Norden
Authors: Dahlgren Gertrud
Published: March 2008

Twenty‐one populations of Ranunculus subgenus Batrachium (Ranunculaceae) from central Jutland, Denmark, were studied in the field and sampled for cytological, morphological and embryological investigation; for embryology the confocal laser scanning method (CLSM) was used. Six taxa were represented: R. penicillatus ssp. penicillatus and ssp. pseudofluitans, R. aquatilis var. aquatilis, R. peltatus ssp. peltatus and ssp. baudotii and R. circinatus. The main aim was to determine whether R. penicillatus occurs in the area. 14 of the 21 populations were referred to R. penicillatus; all 14 were tetraploid, though a few triploid plants were also found in two of these populations. Some populations show characteristic features of hybrid origin. These have, however, found a niche in swift rivers in west‐central Jutland, reduction in fertility being compensated for by the dominant asexual mode of reproduction, and new parts of the river systems have continually been invaded. They are accorded taxonomic rank, the heterophyllous populations being treated as ssp. penicillatus and the homophyllous populations as ssp. pseudofluituns. Accordingly, R. penicillatus is represented in Denmark and thus in Norden. Flora Nordica Notes no. 7.
The intergeneric hybrid grass “Poa labradorica”
Authors: Cayouette Jacques , Darbyshire Stephen J.
Published: March 2008

The new nothogenus ×Dupoa (Dupontia × Poa) is published. Nomenclature of the only known nothospecies, ×Dupoa labradorica(=Poa labradorica), is discussed. Morphology and synecology of this poorly known arctic and subarctic grass are described and a key to related taxa is given. Its morphology and ecology overlap with the putative parental taxa,Poa eminensandDupontia fisherissp.psilosantha. Establishment and persistence of this sterile hybrid are related primarily to geological processes associated with glacio‐eustatic rebound and seasonal ice action affecting its seashore habitats.
New taxa and nomenclatural combinations in Malesian Bauhinia (Leguminosae‐Caesalpinioideae)
Authors: Larsen Kai , Larsen Supee Saksuwan
Published: March 2008

The following new taxa have been described Bauhinia foraminifera var. falcata var. nov., B. kockiana var. angustifolia var. nov., B. kockiana var. bakoensis var. nov., B. kockiana var. beccarii var. nov., B. kockiana var. brevipedicellata var. nov., B. kockiana var. calcicola var. nov., B. merrilliana var. borneensis var. nov., B. pachyphylla var. wenzelii var. nov., B. semibifida var. acuminata var. nov., B. semibifida var. bruneiana var. nov., B. semibifida var. longebracfeata var. nov., B. stipularis var. brachystylus var. nov., B. wrayi var. blumeana var. nov., and B. wrayi var. borneensis var. nov.

The following new combinations have been made: Bauhinia ahemiana var. subglabra comb. nov., B. ampla var. schlechteri stat. nov., B. bidentata var. breviflora stat. nov., B. bidentata var. fraseri comb. nov., B. bidentata var. gracilipes stat. nov., B. bidentata var. monticola stat. nov., B. fabrilis comb. & stat. nov., B. finlaysoniana var. amoena comb. nov., B. finlaysoniana var. leptopus comb. nov., B. finlaysoniana var. montana comb. nov., B. integrifolia ssp. integrifolia var. nymphaeifolia comb. nov., B. kockiana var. scarlatina stat. nov., B. kockiana var. sericeinervia comb. nov., B. kockiana var. velutina comb. nov., B. lingua var. antipolana stat. nov., B. lingua var. riedelii stat. nov., B. semibifida var. perkinsae stat. nov., B. semibifda var. stenostachya comb, nov., B. wrayi var. cancellata comb. & stat. nov., B. wrayi var. cardiophylla comb, nov., and B. wrayi var. rubella comb. nov.
Herb‐rich spruce forests in W Nordland, N Norway: an ecological and methodological study
Authors: Rydgren K.
Published: March 2008

The vegetation of herb‐rich spruce forests in three localities in Brønnøy municipality, W Nordland, N Norway, has been analysed using 120 sample plots, each 25 m2, distributed by a restricted random method. In connection with every sample plot a set of ecological variables have been measured. The most important gradients for the differentiation of the vegetation were identified by DCA ordination and statistical analysis of the vegetational and the ecological data sets. The gradients were: (1) the nutrient gradient, (2) the soil moisture gradient and (3) the microclimate gradient. The importance of choice of ordination technique (DCA or LNMDS) relative to the importance of the choice of some parameters in DCA and LNMDS has been evaluated. Indicating from this evaluation were (1) the choice of weighting function prior to DCA ordination can be as important as the choice of ordination technique when the data set is small; (2) choice of dimensionality in LNMDS is normally not as decisive for the ordination result as the choice of ordination technique and (3) when the data set is larger, the choice of scale range is less decisive for the ordination result than the choice of dimensionality in LNMDS.
A micro‐well method for estimating fungal response to metal ions. Response to aluminium by some saprophytic basidiomycetes
Authors: Høiland Klaus , Dybdahl Hans G.
Published: March 2008

Cultures of 19 saprophytic basidiomycete species were examined for aluminium resistance using a micro‐well technique. The following aluminium concentrations have been employed: 0, 1, e1, e2, e3, and e4 mM given as sulphate. Three of the saprophytic species were also tested at the pH values generated by the same A1 concentrations. The following species were considered resistant: Mycena galopus, M. metata, M. inclinata, M. viridimarginata, Marasmius androsaceus, Galerina calyptrata, and Hypholoma capnoides. The following were sensitive: Micromphale perforans, Mycena cinerella, Clitocybe fragrans, and Clitocybe metachroa. The remaining species showed intermediate responses. The autecology of species exhibiting either a high resistance or a high sensitivity is discussed. Mycena galopus, found to be particularly resistant, may be specially tolerant to acidification since it is reported to increase or persist in polluted environments by several authors.
Germination of up to 129‐year old, dry‐stored seeds of Geranium bohemicum (Geraniaceae)
Authors: Milberg Per
Published: March 2008

Old dry‐stored seeds of the annual pyrophyte Geranium bohemicum from seed collections and herbaria were tested to determine their germinability. Ten samples of seed, ranging in age from 3 to 200 years, were used. The oldest seeds to germinate (three out of ten) were from a 129‐year old collection. All three seedlings developed into healthy plants. This finding supports the assumption that G bohemicum can emerge from a bank of long‐lived seeds after forest fires.
A revision of the genus Drimiopsis (Hyacinthaceae) in East Africa
Authors: Stedje Brita
Published: March 2008

The following taxa of Drimiopsis (Hyacintheceae) are recognized for East Africa (Kenya, Tanzania, Uganda): D. barteri (2n=44), D. botryoides ssp. botryoides (2n=44, 55, 66), D. botryoides ssp. prostrata ssp. nov. (2n = 22), D. maculata and D. sp. A.
Two new species of Abrus (Leguminosae‐Papilionoideae) from Somalia
Authors: Thulin Mats
Published: March 2008

The new species Abrus baladensis, from fixed sand dunes near Mogadishu in south‐central Somalia, and A. gawenensis, from limestone or sand over limestone in central Somalia, are described.
A taxonomìc revision of Hordeum sect. Critesion
Authors: Baden Claus , von Bothmer Roland
Published: March 2008

Eight taxa are treated, viz. Hordeum pubiflorum ssp. pubiflorum (2n=14), ssp. halophilum (comb. nov.) (2n=14), H. comosum (2n=14), H. jubatum ssp. jubatum (2n = 28), H. jubatum ssp. intermedium (2n = 28), H. lechleri (2n=42), H. procerum (2n=42), and H. arizonicum (2n=42). Information about morphological variation, cytology, and genome relationship, ecology and distribution is presented.
The correct name for Bulbophyllum uniflorum Griff., nom. illeg. (Orchidaceae)
Authors: Seidenfaden Gunnar
Published: March 2008

An attempt is made to find the correct name for Bulbophyllum uniflorum Griff., nom. illeg., and as valid name Bulbophyllum monanthum (Kze.) J. J. Smith is proposed.
A systematic study of the Vernonia leopoldi complex (Compositae — Vernonieae)
Authors: Wattimah Stella , Tadesse Mesfin
Published: March 2008

A systematic study of theVernonia leopoldicomplex was undertaken with the objective of determining the taxonomic status of the species involved within this group. TWo species, i.e.Vernonia leopoldiandV. bipontinihave been recognized as distinct based on evidence from morphological studies accompanied by field observations and anatomical studies (particularly trichomes and petioles). Both species have 2n = 36 (first reports). Three new varieties have been recognized withinV. bipontini, namely var.bipontini, var.gonderensisand var.caccaensis. A lectotype is selected forV. leopoldi.
Chlorodesmos hispidus, a morphological expression of Synura spinosa (Synurophyceae)
Authors: Calado A. J. , Rino J. A.
Published: March 2008

Colonies identical to Chlorodesmos hispidus were found in several places in Portugal and examined in the light and scanning electron microscopes. The ultrastructure of the scales, previously unknown, was found to be identical to the scales of Synura spinosa. Consideration of the information available leads us to consider Chlorodesmos as a synonym of Synura.
Checklist of chromosome numbers counted in Madeiran flowering plants, with notes on polyploidy, life form, endemism and evolution
Authors: Dalgaard Vilhelm
Published: March 2008

Chromosome numbers of 178 Madeiran flowering plant species are included in the checklist. Of 140 native species, 87 are Macaronesian or Madeiran endemics. The percentage of polyploidy in the Madeiran flora has been calculated at 40%, based on 20.9% of the native flora. Endemic phanerophytes are remarkably rich in polyploids. Comments are made on the evolutionary origins of Madeiran endemics. The majority are schizoendemics, evolved by gradual speciation. There are also a number of palaeoendemics and apoendemics. The higher level of polyploidy in the Madeiran endemics when compared with the Canarian endemics is discussed in the light of gradual divergence, the principal speciation process in the Macaronesian flora.
Two new species and a new name in Andean Asclepiadaceae
Authors: Morillo Gilberto
Published: March 2008

Two new species of Asclepiadaceae, Cynanchum ellemannii and Gonolobus saraguranus, collected by Lis Elleman the “Aarhus University Ecuador Project” as part of an ethnobotanical study in the Province of Loja, are here described and illustrated. Moreover, the new name Cynanchum trianae is proposed.
Xerxes, a new name to replace Alcantara (Asteraceae: Vernoniae)
Authors: Grant Jason R.
Published: March 2008

Xerxes is proposed as a new name to replace Alcantara Glaziou ex G. M Barroso (Asteraceae) (1969), not Alcantarea (Morren ex Mez) Harms (Bromeliaceae) (1929). The genus is monotypic, represented by Xerxes ekmanianum, comb. nov.
The genus Chamaegastrodia (Orchidaceae)
Authors: Seidenfaden Gunnar
Published: March 2008

A merger of the genera Evrardia and Chamaegastrodia is proposed, and an annotated enumeration of five species so far recognized is proposed.
Revision of the genus Curculigo (Hypoxidaceae) in the Flora Zambesiaca area
Authors: Zimudzi C.
Published: March 2008

Two species of Curculigo; C. pilosa and a new species C. multiflora are presented from the Flora Zambesiaca area. The descriptions, identification key and a distribution map of the species are presented.
A taxonomic study of the subantarctic Piptoporus (Polyporaceae, Basidiomycetes) I
Authors: Rajchenberg Mario
Published: March 2008

Ryvardenia gen. nov. is proposed to accommodate Polyporus cretaceus (as type species) and Polyporus campylus. The new genus is characterized by: medium to large fruit bodies that may be solitary or imbricate; monomitic context with clamped generative hyphae with thin to thickened walls that are not metachromatic in cresylblue; dimitic dissepiments with unbranched skeletal hyphae; obovate or broad‐ellipsoid, uninucleated, thick walled spores; bipolar sexuality; astatocoenocytic nuclear behavior and simple‐septated generative hyphae in the advancing mycelium in culture. Mating tests between specimens from Australia/New Zealand and Argentina of R. cretacea and R. campyla are presented. Tyromyces falcatus is considered a synonym of R. campyla only differing in the greater amount of sclerified generative hyphae and skeletal hyphae present in the fruit bodies.
The genus Morinda (Morindeae, Rubioideae, Rubiaceae) in New Caledonia: taxonomy and phytogeny
Authors: Johansson Jan Thomas
Published: March 2008

The genus Morinda (Morindeae, Rubioideae, Rubiaceae) is closely allied to Coe‐lospermum, Gynochthodes, and Pogonolobus, but differs from these genera in inflorescence and pollen morphology. In this revision of Morinda in New Caledonia fourteen species are recognized, one of which is subdivided into four varieties. Eleven species are endemic to the area. Two new species, M. montana and M. truneata, and one new variety, M. myrtifolia var. vrevifolia, are described. Two recombinations, M. myrtifolia var. choriophylla and M. myrtifolia var. velutina, are made. All taxa are illustrated with line drawings and their distributions mapped, and a key to the species is presented. Phylogenetic analyses including nineteen species are presented.
Mallomonas wujekii (Synurophyceae), a new species from Florida, U.S.A.
Authors: Siver Peter A.
Published: March 2008

A new species of Mallomonas, M. wujekii sp. nov., belonging to the Series Tonsuratae is described from a dilute, acidic locality in Florida, U.S.A. Bristle bearing domed scales are restricted to the anterior end, and scales are orientated with their longitudinal axes at a 60° to 90° angle with the longitudinal axis of the cell. Cells have three types of scales, domed anterior scales, domeless body scales and spined posterior scales. All scales possess papillae that are restricted to the shield and have one rib positioned on each end of the posterior flange. The new species is believed to be most closely related to Mallomonas tonsurata and M. galeiformis. The combination of characters of the bristles is unique among taxa of Mallomonas.
Some taxa of Parietaria (Urticaceae) from tropical Africa
Authors: Gebauer Rosemarie
Published: March 2008

In tropical Africa annual and short‐lived perennial taxa of Parietaria occur. Three of them, which are not member of the Parietaria debilis group, have been studied in detail in this paper. P. laxiflora, P. ruwenzoriensis ssp. ruwenzoriensis and P. ruwenzoriensis ssp. keniensis are described, illustrated and mapped. P. ruwenzoriensis ssp. keniensis is described as a new taxon. Of the three perennial species, that have been described (P. scandens, P. laxiflora, P. ruwenzoriensis), P. laxiflora and P. ruwenzoriensis are accepted, and P. scandens is a synonym of P. ruwenzoriensis. The sex distribution of the flowers is an important character for delimitating the taxa in Africa, which has been disregarded in earlier treatment. In the past all tropical African taxa were often lumped together with the annual P. debilis.
Selaginella dixitii, a new species of Selaginellaceae from India
Authors: Madhusoodanan P. V. , Nampy Santhosh
Published: March 2008

A new species of Selaginella, S. dixitii is described and illustrated.
Taxonomic notes on the genus Plectocarpon (lichenicolous Ascomycetina)
Authors: Diederich Paul , Etayo Javier
Published: March 2008

The genus Plectocarpon is included in the Opegraphaceae (Opegraphales). It is distinguished by rounded mono‐ or multilocular, often stromatic ascomata with a reduced non‐carbonized exciple, asci of the Opegrapha‐typs, (1–)3(‐6)‐septate colourless spores with a distinct perispore and anastomosed paraphysoids. The genus includes at least 10 species, all lichenicolous on macrolichens, belonging mainly to the Peltigerales. 5 species are here described as new: P. lambinonii sp. nov. on Lobaria isidiosa and L. retigera from Papua New Guinea, Russia and Rwanda, P. macaronesiae sp. nov. on Lobaria puimonaria and L. suhlaevis from the Azores, the Canary Islands and Madeira, P. sampaianae sp. nov. on Pannaria sampaiana from Great Britain and Spain, P. scrobiculatae sp. nov. on Lobaria scrobiculata from France, Great Britain, Norway and Spain and P. usneae sp. nov. on Usnea exasperata from Rwanda. An additional undescribed species on Sticta leami from Papua New Guinea is mentioned. Most species form distinct galls on their host lichens.
The genus Colpodium (Gramineae) in Africa
Authors: Hedberg O. , Hedberg I.
Published: March 2008

Recent collections of the genus Colpodium from Ethiopia and South Africa made a renewed revision of the African material of this genus desirable. Apart from the two earlier recognized African species (C. chionogeiton and C. hedbergii) a third one is described (C. drakensbergense), restricted to the Drakensberg area of eastern Lesotho and amply distinct both in morphology and chromosome number. The phytogeographical position of Colpodium is briefly discussed.
The genus Cirrhopetalum and the genera of the Bulbophyllum alliance
Authors: Garay Leslie A. , Hamer Fritz , Siegerist Emly S.
Published: March 2008

The genus Cirrhopetalum is reinstated among the genera of the Bulbophyllum alliance on the primary characters derived from its type species. Both its distinctness and position are ascertained through re‐examining the primary characters of each of the genera of this alliance and the information thus gleaned is summarized in the form of a dichotomous key. A complete list of all binomials published under Cirrhopetalum is provided. For each binomial either its sectional assignment or its currently valid name under other genera is given. Because of the superficial resemblance of certain Bulbophyllum species to those of Cirrhopetalum, many of which consequently were treated as such, in Appendix A a key to various sections of Bulbophyllum is also presented in which the Cirrhopetalum‐like plants have either pseudoumbellate or capitate inflorescences. Appendix B contains descriptions of new genera and nomenclatorial transfers.
Five new species and two new combinations of ferns (Polypodiopsida) from Ecuador
Authors: Moran Robbin C.
Published: March 2008

Five new species of ferns are described: Alsophila esmeraldensis, Blechnum rheophyt‐icum, Cyathea amazonica, C. hemiepiphytica, and C. palaciosii. Two new combinations are made: Cyathea bipinnata and Pecluma pastazensis.
Observations on the development of the foliar secretory cavities of Porophyllum lanceolatum (Asteraceae)
Authors: Monteiro Walkyria R. , Castro Marília de Moraes , Fahn Abraham , Caldeira Waldir
Published: March 2008

The lipophilic secretory cavities observed in the leaf of Porophyllum lanceolatum (Asteraceae) are scattered throughout the lamina and around its crenate margins. In the young leaf the cavities are initiated, and their development completed, while the surrounding tissues are still at early stages of differentiation. The cavity lumen has a lysigenous origin. Cell lysis, expansion of the developing leaf and, probably, the pressure exerted by the accumulation of secretory products, are believed to account for the gradual enlargement of the lumen. Concomitantly with ctll disintegration, which occurs throughout development, divisions take place in all cells of the gland. A mature cavity has a multilayered epithelium. Histochemical tests for RNA, proteins, phenolics and pectic polysaccharides revealed intense staining of the content of the epithelial cells in the early stages of cavity development, and a decrease in staining towards its maturity. Staining for lipids is intense in all developmental stages. Tests on the material observed in the lumen of mature cavities, show positive results for lipids, pectic polysaccharides and phenolics.
A taxonomic study of the Subantarctic Piptoporus (Polyporaceae, Basidiomycetes) II
Authors: Rajchenberg Mario
Published: March 2008

Morphological and cultural studies of Polyporus maculatissimus and P. portentosus are presented. Neolentiporus gen. nov. is proposed to accommodate P. maculatissimus, a species with a striking macromorphological similarity with the north temperate P. squamosus. The new genus is characterized by medium to large stipitate fruitbodies with a poroid hymenophore, circular to flabellate pilei with a scaly surface and an excentric or lateral stipe that sometimes is reduced to a short, robust umbo. The hyphal system is dimitic with clamped, irregularly thick‐walled generative hyphae that do not react with cresyl‐blue, and terminal, unbranched, thick‐walled skeletal hyphae that are strongly metachromatic in cresyl‐blue. Spores are cylindric, hyaline, thin‐walled, inamyloid and binucleate. The sexuality is bipolar, the nuclear behavior is astatocoeno‐cytic and the associated wood‐rot is brown. The new genus is regarded as the poroid counterpart of the agaricoid Neolentinus. Polyporus portenrosus is included in Laetiporus on the basis of its yellowish fruitbodies, its soft, punky context, its hyphal system composed of simple septate generative hyphae and binding hyphae, its holocoenocytic nuclear behavior and its associated brown wood‐rot. A new code symbol, i.e. ‘9s’ is proposed to codify the presence, in cultures, of simple‐septate generative hyphae with irregularly thickened walls.
Age‐related morphological differentiation among populations of Dactylorhiza traunsteineri (Orchidaceae) in eastern Sweden
Authors: Andersson Eva
Published: March 2008

Andersson, E. 1995. Age‐related morphological differentiation among populations of Dactylorhiza traunsteineri (Orchidaceae) in eastern Sweden. ‐ Nord. J. Bot. 15: 127–137. Copenhagen. ISSN 0107–055X.

Evolution takes time. It is generally believed that for a given species older populations have diversified more than younger ones. To test this hypothesis, two regions in southern Sweden of different age, determined based on land uplift data, were chosen for studying morphological differentiation within the orchid species Dactylorhiza traunsteineri. Individuals from 10 populations in an older region, Gotland, and 11 populations in a younger region, Uppland, were scored for 54 morphological characters. Patterns of morphological variation and the structure of diversity were analyzed using multivariate and simple statistics; the degrees of correspondence among matrices of morphological and environmental factors were calculated. Morphological variation among populations was greater in the older region. This pattern was consistent in all analyses, although more pronounced in the analyses of floral morphology than in analyses of vegetative morphology. Orchid populations on Gotland appear to be relatively old, small and isolated, but genetic drift does not seem to have been important for the differentiation among populations. Other factors, such as habitat heterogeneity, pollinator‐mediated selection and accumulation of neutral mutations, were more important. Although populations from Uppland are young, the founder effect does not seem to have been responsible for the low level of diversity among populations. Differentiation appeared to have been limited by low habitat diversity, and a lack of time for genetic drift and for the accumulation of mutations. This study shows that patterns of differentiation within this species are indeed time‐dependent.
Frond development and phenology of Thelypteris limbosperma, Athyrium distentifolium, and Matteuccia struthiopteris in Western Norway
Authors: Odland Arvid
Published: March 2008

Odland, A. 1995. Frond development and phenology ofThelypteris limbosperma, Athyrium distentifolium, andMatteuccia struthiopterisin Western Norway. — Nord. J. Bot. 15: 225–236. Copenhagen. ISSN 0107–055X.

The pattern of growth and phenology ofThelypteris limbosperma, Athyrium distentifolium, andMatteuccia struthiopterisfronds has been investigated, with particular emphasis on height increments of the sporophytes and the development of fertile fronds. In order to study both interspecific and intraspecific differences, fern stands along altitudinal gradients have been monitored. To investigate the initiation of fertility, fronds representing different developmental stages have been sampled. Climatic data have been collected with a data‐logger during the study periods.

The ferns show significant differences in growth pattern and phenology.Matteuccia struthiopterishas a growth curve that is best described as monomolecular, characterised by high growth rates during the early developmental stage, while the development ofThelypteris limbospermaandAthyrium distentifoliumfollow a logistic growth curve. The species need different periods of time to develop their fronds. The main frond elongation does not start before soil temperature has reached 7 C. After that, the growth is mainly controlled by air temperature. Within the interval when mean maximum temperatures are 8–20 C, all three ferns showed increased growth rates with increasing air temperatures, but the increase was greatest inM. struthiopteris. At higher temperatures, the growth rate ofM. struthiopterisandT. limbospermadecreased.Athyrium distentifoliumis characterised by producing sori at an early developmental stage. FertileMatteuccia strurhiopterisfronds are developed at a much later developmental stage.Thelypteris limbospermaneeds a longer period of time to produce mature fronds than the other species. The investigation indicates that plant growth and development are determined by both internal and external factors. It is concluded that growth rate, phenology, and the ability of ferns to produce mature fronds reveal close similarities with their response to environmental variables, and hence with their broad‐scale geographical distributional patterns.
Mating systems of three meadow plant species
Authors: Norderhaug A.
Published: March 2008

Norderhaug, A. 1995. Mating systems of three meadow plant species — Nord. J. Bot. 15: 243–250. Copenhagen. ISSN 0107–055X.

The area of species‐rich hay meadows in Norway has been drastically reduced during the 20th century. This continuing process results in fragmentation and isolation of remaining habitats. Small and isolated populations may have reduced gene flow. This is a crucial factor for the structure and cohesiveness of populations. Gene flow in plant species is regulated by pollen and seed dispersal, and pollen dispersal is controlled by the species' mating system. As part of a research project on habitat fragmentation three meadow species (Dactylorhiza sambucina, Hypochoeris maculata, Polygala vulgaris) with different life strategies were therefore selected for studies of their mating systems. A hand pollination experiment showed that bothDactylorhiza sambucinaandPolygala vulgariswere self‐compatible. Seed set inH. maculatawas low and the species may be considered as pseudo‐self‐compatible or self‐incompatible. Using Bawa's (1974) criteria, however, alsoHypochoeris maculatashould be considered as self‐compatible. All three species enhanced outbreeding butP vulgurisalso proved to be a good selfer and autogamous.
Echidnopsis globosa sp. nov. (Asclepiadaceae‐Stapelieae) from Yemen
Authors: Thulin Mats , Hjertson Mats
Published: March 2008

Thulin, M. & Hjertson, M. 1995. Echidnopsis globosa sp. nov. (Asclepiadaceae‐Stapelieae) from Yemen. — Nord. J. Bot. 15: 261–262. Copenhagen. ISSN 0107–055X.

The new species Echidnopsis globosa from rocky hillsides on limestone in the Hadramaut Region in Yemen is described and illustrated. It belongs to a group of species including E. squamulata from Yemen and E. ericiflora from Kenya, but is unique in the genus by its almost perfectly globose flowers.
A taxonomic study of the Centella rupestris group
Authors: Schubert Mahalia T. R. , van Wyk Ben‐Erik
Published: March 2008

Schubert, M. T. R. & Van Wyk, B.‐E. 1995. A taxonomic study of the Centella rupestris group. — Nord. J. Bot. 15: 263–268. Copenhagen. ISBN 0107‐055X.

Centella rupestris, C. restioides and a new species, C. thesioides, are grouped together on the basis of a woody habit, acicular or linear leaves and large bracts which cover, or partially cover the flower and fruit. The taxonomy, geographical distribution and species delimitation of this complex have been clarified through herbarium studies and in situ studies of the habit, leaves, inflorescences, bracts and fruit.
A reevaluation of the tribes Hippotideae and Tammsieae (Rubiaceae)
Authors: Rova Johan H. E. , Andersson Lennart
Published: March 2008

Rova, J. H. E. & Andersson, L. 1995. A reevaluation of the tribes Hippotideae and Tammsieae (Ruhiaceae). — Nord. J. Bot. 15: 269–284. Copenhagen. ISSN 0107–055X.

The genera Hippotis, Pentagonia, Sommera, and Tammsia, the hippotides, have recently been removed from their traditional position in the tribe Isertieae and proposed to form two separate tribes, Hippotideae (the three former genera) and Tammsieae (the latter one). In the most recent overview of the classification of the Ruhiaceae, the position of these tribes was considered uncertain. The morphology and micromorpho‐logy of representatives of all genera were reexamined and data were analysed cladisti‐cally. It is concluded that the original distinction between the Hippotideae and Tammsieae was based on faulty observations, the hippotides being uniform in ovary morphology. The cladistic analysis suggests that the hippotides form a monophyletic group, within which Tammsia is nested. It is therefore proposed that Tammsieae should he reduced to a synonym of Hippotideae. There are no indications that the hippotides should he reunited with the Isertieae. The genus Wiasemsba Klotzsch is shown to he synonymous with Tammsia, and it is argued that the genus Striolaria Ducke is synonymous with Pentagonia.
Nomenclatural remarks on the Salix viminalis group in Norden
Authors: Larsson Gunvor
Published: March 2008

Larsson, G. 1995. Nomenclatural remarks on the Salix viminalis group in Norden. —Nord. J. Bot. 15: 343–346. Copenhagen. ISSN 0107–05513.

The taxa in the Salix viminalis group which have been found in Norden are lectotyp‐ified: S. viminalis, S. dasyclados, S. x smithiana, S. x stipularis and S. x calodendron. Flora Nordica notes no. 12.
Crossability variation in four South American Hordeum species
Authors: Andersson Zandra
Published: March 2008

Andersson, 2. 1995. Crossability variation in four South American Hordeum species— Nord. J. Bot. IS: 355–364. Copenhagen. ISSN 0107–055X.

Intra‐ and interpopulation crosses within the four South American Hordeum species, H. cordobense, H. chilense, H. muticum and H. stenostachys were performed. Seeds were obtained in all intrapopulation crosses within all four species. Hordeum cordobense showed little variation in crossability of interpopulation crosses and the F1‐families had rather high fertility. A wide range in crossability between populations was observed in the three species H. chilense, H. muticum and H. stenostachys. Some combinations failed to set seed while others had high seed set. The fertility of the F1‐‐ families varied from almost sterile to fully fertile. All parental plants, intra and interpopulation hybrids in the four species had very high meiotic pairing frequency with 12–14 chiasmata per cell. Hordeum cordobense is a homogeneous species while the other three species are heterogeneous and genetically diverse.
Taxonomy and distribution of the genus Rubus (Rosaceae) series Radula on the Iberian Peninsula
Authors: Monasterio‐Huelin Elena
Published: March 2008

Monasterio‐Huelin. E. 1995. Taxonomv and distribution of the genus Rubus (Rosaceae) series Radulu on the Iberian Peninsula. — Nord. J. Bot. 15: 365–373. Copenhagen. ISSN 0107–055X.

The majority of european batologists currently interpret the ser. Radula in a sense different from that given by its original author. According to the modem concept, this series is separated into two, distinguished by the leaflets felted beneath (ser. Radula) versus not felted (ser. Pallidi). Following this criterion, we include 7 species in ser. Radula, one of which (R. pauanus) is described as new, and provide a photograph of the holotype, an analysis of pollen, and a distribution map. Also provided are keys to the series of the subgenus Rubus and to the species of the ser. Radula, and a comparative study from a morphological and biogeographical perspective of all species which comprise this series on the Iberian Peninsula.
Nordic Journal of Botany
Authors: Molau Ulf
Published: March 2008

Book reviewed in this article:

Hilliard, O. M. 1994. The Manuleae. A tribe of Scroph‐ulariaceae. — Edinburgh University Press, Edinburgh. 579 pp, illus. ISBN 0–7486–0489–8, hardcover. Price: ‐.
Indigofera rubromarginata sp. nov. (Leguminosae) from southern Arabia, with a note on I. eremophila
Authors: Thulin Mats
Published: March 2008

Thulin, M. 1995. Indigofera rubromarginata sp. nov. (Leguminosae) from southern Arabia, with a note on I. eremophila. — Nord. J. Bot. 15: 519–521. Copenhagen. ISSN 0107–055X.

The new species Indigofera rubromarginata, widespread along the coast of southern Arabia in Yemen and Oman, is described and illustrated. The closely related I. eremophila, previously known only from eastern Ethiopia and Somalia, is reported also from Yemen.
Remarks on Aspicilia parasitica (Lecanoraceae, Lichenes)
Authors: Loppi Stefano , Mariotti Mauro Giorgio
Published: March 2008

Loppi, S. & Mariotti, M. G. 1995. — Remarks on Aspicilia parasitica (Lecanoraceae, Lichenes). — Nord. J. Bot. 15: 557–559. Copenhagen. ISSN 0107–055X.

Morphology and distribution of Aspicilia parasitica B. de Lesd., a much neglected species, are discussed. Since the holotype has been lost, a lectotype was selected. Examination of the latter and other specimens showed that the diagnostic characters are quite constant. All of known stations of A. parasitica are in the central‐eastem Mediterranean area and include Italy, Algeria, Greece and Bulgaria.
A new species of Eriocaulon (Eriocaulaceae) from Ethiopia
Authors: Lye Kåre Arnstein
Published: March 2008

Eriocaulon crassiusculum sp. nov. is described from the Kefa province in southwestern Ethiopia. Illustrations are provided for habit as well as details of flowers (including pollen) and seeds. The new species is most closely related to E. transvaalicum, a widespread species in southern and eastern Africa.
Arthropogon rupestris (Poaceae: Arthropogoneae) a new species from the Brazilian cerrado vegetation and a revised key for the genus.
Authors: Filgueiras Tarciso S.
Published: March 2008

Arthropogon rupestris sp. nov., a new panicoid grass species from the cerrado vegetation of central Brazil is described, illustrated and compared to A. scaber and A. bolivianus. A key to the eight species of the genus is given as well as their known distribution.
Taxonomy of Trechispora farinacea and proposed synonyms II. Species with a smooth hymenophore
Authors: Larsson Karl‐Henrik
Published: March 2008

Trechispora farinacea (Corticiaceae, Basidiomycotina) is currently interpreted as a widespread and morphologically variable taxon. Type collections of four species names, by various authors proposed as synonyms, were studied. They were all found to represent species different from T. farinacea. Two of them are accepted here, viz. T. caucasica, and T stellulata. The macro‐ and micromorphological differences observed are further supported by ultrastructure of spores and crystals as seen in SEM. A description of T. microspora is included because it is repeatedly confused with T. stellulata.
New species and combinations in Trechispora (Corticiaceae, Basidiomycotina)
Authors: Larsson Karl‐Henrik
Published: March 2008

Three new species, Trechispora incisa, T: laevis. and T: minima. are described. The combinations T. rigida and T. verruculosa are proposed.
The Dutch representatives of the Staurastrum manfeldtii complex (Desmidiaceae, Chlorophyta): a taxonomic revision
Authors: Coesel Peter F. M.
Published: March 2008

The taxonomy and local distribution within The Netherlands of a group of closely related species belonging to the Staurastrum manfeldtii cluster have been investigated. S. manfeldtii is a benthic species, distributed in mesotrophic, circum neutral water bodies. S. planctonicum and S. pingue are common plankters in eutrophic. alkaline lakes. S. productum stat. nov., and S. bulbosum stat. nov., confined to the benthos of acid, oligo‐mesotrophic pools, occurred scarcely in the beginning of this century but are without any record after the twenties. S. bicorne and S. simplicius stat. nov only very incidcntally encountered, might be mere biradiate forms of S. productum and S. planctonicum respectively.
Notes on the esterase variation in Swedish Dactylorhiza incarnata s. l. (Orchidaceae)
Authors: Hedrén Mikael
Published: March 2008

Swedish material of Dactylorhiza incarnara s. l. shows little variation at commonly investigated allozyme loci. However, interpretable variation was found at one esterase locus. All plants investigated of D. incarnata var. cruenta from southern Sweden (with spotted leaves) were homozygous for allele a at this locus, whereas all plants investigated of D. incarnata var. ochroleuca were fixed for allele b. In D. incarnata var. incarnata, both alleles were found, although the b allele dominated. In northern Swedish material of D. incarnata s. l., only allele b was found, regardless whether the material had spotted leaves (sometimes referred to as var. cruenta), or had unspotted leaves.

These results indicate that there is restricted gene flow between var. cruenta and the other varieties in southern Sweden, although they often grow in mixed populations. The northern Swedish material with spotted leaves appears not to be related to the southern var. cruenta.