bluuebunny/crossref_metadata_2025_split huggingface dataset:
Leaf anatomy of the South African Danthonieae (Poaceae). XV. The genus <i>Elytrophorus</i>
Authors: Ellis R. P. 
Published: July 2015

The leaf anatomy of Elytrophorus globularis Hack, and E. spicatus (Willd.) A. Camus is described and illustrated from freshly fixed material from SWA/Namibia and Botswana. It is shown that these two species are anatomically indistinguishable. It is suggested that they are conspecific. and that E. spicatus possibly represents juvenile plants with immature inflorescences. The anatomical evidence strongly refutes a chloridoid relationship for Elytrophorus but appears to support arundinoid affinities for the genus. Striking anatomical and ecological similarities exist between Elytrophorus and Sacciolepis huillensis (Rendle) Stapf. No significant leaf anatomical differences separate Elytrophorus from S. huillensis and some of the other C3 panicoid taxa and. consequently, Elytro­phorus may represent a link between the Arundinoideae and the Panicoideae.
Six cultivars of <i>Solanum macrocarpon</i> (Solanaceae) in Ghana
Authors: Bukenya Z. R. , Hall J. B. 
Published: July 2015

The Solanum macrocarpon complex (the cultivated egg plant) has been studied in Ghana using morphological and experimental methods. Six cultivars belonging to the S. macrocarpon complex have been recognized and described. The cultivars are S. macrocarpon ‘Gboma’, S. macrocarpon ‘Mankessim’, S. macrocarpon ‘Akwaseho’, S. macrocarpon ‘Kade’, S. macrocarpon ‘Sarpeiman’ and S. macrocarpon ‘Bui’. The very spiny, hairy plant traditionally called S. dasyphyllum is regarded as the wild ancestor from which the cultivars have been derived through a process of crop evolution. The variation within S. macrocarpon complex is attributable to genotypic differences and environmental factors.
Studies in the genus <i>Riccia</i> (Marchantiales) from southern Africa. 10. Two new white-scaled species of the group ‘Squamatae’: <i>R. argenteolimbata</i> and <i>R. albomata</i>
Authors: Volk O. H. , Perold S. M. , Bornefeld T. 
Published: July 2015

Two new white-scaled species, R. argenteolimbata and R. albomata have been isolated by one of us (Volk). R. argenteolimbata has a compact thallus with stiff, regular scales and apolar spores, whereas R. albomata has a somewhat more spongy structure of the thallus, large, frilly, hyaline scales and polar spores.
Studies in the genus <i>Lotononis</i> (Crotalarieae, Fabaceae). 2. Three new species of the section <i>Telina</i> from the Cape Province
Authors: Van Wyk B-E. 
Published: July 2015

Three new species of the section Telina (E. Mey.) Benth of Lotononis (DC.) Eckl. Zeyh. are described: L. azureoides B-E. van Wyk, L. gracilifolia B-E. van Wyk and L. lamprifolia B-E. van Wyk. These species appear to be very rare and are known from only a few localities in marginal fynbos areas of the south-western and southern Cape.
Studies in the genus Lotononis (Crotalarieae, Fabaceae). 5. A new species of the L. involucrata group (section Polylobium) from the north-western Cape Province
Authors: Van Wyk B-E. 
Published: July 2015

A new species of the section Polylobium (Eckl. Zeyh.) Benth. of Lotononis (DC.) Eckl. Zevh. is described, namely L racemiflora B-E. van Wyk. The species, known only from a single collection near Clanwilliam in the north­western Cape, is closely related to L involucrata (Berg. ) Benth. and L angustifolia (E. Mey.) Steud.c
Studies in the genus <i>Riccia</i> (Marchantiales) from southern Africa. 11. <i>Riccia montana</i> and <i>R. alboporosa</i>, a further two new white-scaled species of the group ‘Squamatae’
Authors: Perold S. M. 
Published: July 2015

Another two new endemic species of the subgenus Riccia. section Riccia. group ‘Squamatae , are described: R. montana and R alboporosa. The distribution of R montana is apparently restricted to high altitudes in the Drakensberg and Witteberg Mountain ranges. The species is characterized by ligulate branches, finely spongy dorsal surface and hyaline to white, calcium-encrusted scales. R alboporosa is found in Namaqualand. but it is rare It can be recognized by the distinctly porous appearance of the dorsal surface due to the presence of large. ± regularly spaced air pores, which are encircled by six or seven radially arranged, wedge-shaped cells that become white on drying, hence the specific epithet.
New taxa, combinations and records of Pteridophyta from southern and central Africa
Authors: Burrows J. E. 
Published: July 2015

Four new taxa of ferns are described and illustrated from southern Africa: Ophioglossum convexum J.E. Burrows, Mohria caffrorum (L.) Desv. var. ferruginea J.E. S.M. Burrows, Marsilea farinosa Launert subsp. arrecta J.E. Burrows and Asplenium sebungweense J.E. Burrows. The combination of Grammitis rigescens (Bory ex Willd.) J.E. Burrows is made. Ophioglossum thomasii Clausen, O. rube Hum Welw. ex A. Braun. Vinana ensiformis Swartz and Asplenium buettneri Hieron. ex Brause are new records for Zimbabwe, while Hymenophyllum splendidum V.d. Bosch and Asplenium uhligii Hieron. are new records for Malawi and Zimbabwe. Actiniopteris semiflabellata Pichi-Sermolli is recorded from Namibia and Thelypteris oppositiformis (C. Chr.) Ching is recorded from the Transvaal.
A contribution to the pteridophyte flora of Transkei
Authors: Johnson C. T. , Hutchings A. 
Published: July 2015

An analysis of the data is presented in three tables and a comparison is made with that of adjacent areas. Lygodium kerstenii*** and Dryopteris dracomontana are recorded from Transkei for the first time. The 129 species, with their subspecies and varieties (137 taxa in all), in the 51 genera of Transkei are listed. Coded distribution ranges are given for each taxon.
New species of <i>Erica</i> (Ericaceae) from the Cape Province
Authors: Oliver E. G. H. 
Published: July 2015

Three new species of Erica L. (Ericaceae) are described from the southern parts of the Cape Province. E. amicorum E.G.H. Oliver, an endemic marsh species from the Langeberg near Riversdale, is one of the most distinctive species in the genus on account of its almost free reflexed petals, reflexed stamens and exserted gynoecium. The mat-forming E. tegetiformis E.G.H Oliver is allied to E. senilis Klotzsch ex Benth. and E. eriophoros Guth. Bol., all occurring at high altitudes in the Cold Bokkeveld and Cedarberg. E. cunoniensis E.G.H. Oliver is allied to the E. squarrosa Salisb./E. gysbertii Guth. Bol. complex and is very localized in the mountains of the western part of the Caledon Division near Rooi Els.
Studies in the genus <i>Riccia</i> (Marchantiales) from southern Africa. 17. Three new species in section <i>Pilifer</i>: <i>R. elongata</i>, <i>R. ampullacea</i> and <i>R. trachyglossum</i>
Authors: Perold S. M. 
Published: July 2015

Species in section Pilifer Volk (1983) are often very difficult to identify (Perold 1990b). Most of them require close examination of the dorsal cell pillars in reasonably fresh collections, as these cells can seldom be reconstituted in long dried material.The three species, R elongata. R ampullacea and R trachyglossum, here described as new, have been maintained in cultures for lengthy periods, during which their dorsal cells were studied. The spore ornamentation was also quite useful in separating these species. R elongata is known from eastern Transvaal, R. ampullacea from the Witteberg Mountains of the eastern Cape Province and the Drakensberg Mountains of Lesotho and Natal, and R. trachyglossum is so far known only from (he highlands of Lesotho.
Studies in the genus <i>Riccia</i> (Marchantiales) from southern Africa. 20.,<i>R. albovestita</i> and its synonyms, <i>R. duthieae</i> and <i>R. sarcosa</i>
Authors: Perold S. M. 
Published: July 2015

As has been repeatedly emphasized elsewhere, species in section Pilifer Volk are often very difficult to distinguish (Perold 1990b, 1990c). This is nowhere better illustrated than in the case of R duthieae Volk Perold and R. sarcosa Volk Perold. both initially described as new species, which are now regarded by me as synonyms of R. albovestita Volk. Comparisons are drawn between the thallus dimensions, dorsal cell pillars, spore ornamention and other characters, in support of the above conclusion. An updated distribution map and a list of the specimens examined are added, because several new collections have been made since the original publications.
A new species of <i>Merxmuellera</i> (Arundineae, Poaceae) from South Africa
Authors: Barker N. P. , Ellis R. P. 
Published: July 2015

Merxmuellera setacea N.P. Barker from the south-western Cape. South Africa, is formally described. Descriptions of the morphology and leaf anatomy, in transectional and surface view, as observed under the light- and scanning electron microscope are given. Comparisons between this taxon and other southern African arundinoid species are made on the basis of morphological and anatomical observations. While the morphology of M setacea is in keeping with the generic limits of Merxmuellera Conert. the leaf blade anatomy appears to be intermediate between Merxmuellera, Pentameris Beauv. and Pentaschistis (Nees) Spach.
Studies in the Ericoideae (Ericaceae). VIII. New species in Erica, section <i>Pseuderemia</i>, from southern Africa
Authors: Oliver E. G. H. , Oliver Inge M. 
Published: July 2015

Three new species are described in the genus Erica L.: E abbottii E.G.H Oliver, endemic to the South Coast of Natal and neighbouring Transkei. E. swaziensis E.G.H Oliver, a Swaziland endemic, and E. ingeana E.G.H Oliver which is confined to the high mountains in the eastern Little Karoo of the Cape Province.
An overview of <i>Penicillium</ (Hyphomycetes) and associated teleomorphs in southern Africa
Authors: Schutte A. L. 
Published: July 2015

Literature on the hyphomycete genus Penicillium Link and its teleomorphs, Eupenicillium Ludwig and Talaromyces C.R.Benjamin, is surveyed in the Republic of South Africa, Lesotho, Mozambique, Namibia, Swaziland and Transkei up to 1990. References are grouped under the headings, general mycology, plant pathology, industrial application, medical importance, mycotoxins and chemical work. An alphabetical list of the species recorded in southern Africa as well as the host and/or substrate from which each species has been reported is presented with relevant literature references; specimens in various culture collections are also incorporated. Although most of the known Penicillium species have already been reported from southern Africa, in-depth work is still required in all fields of research concerning this genus.
First report on the presence of Enterobryus species (Trichomycetes: Eccrinales) in South Africa and the description of three new species
Authors: Gorter G. J. M. A. 
Published: July 2015

The occurrence of Trichomycetes in the Republic of South Africa is reported for the first time. Thus far only various juliform millipedes have been examined for the presence of these fungi. Three new species of Enterobryus have been found and are described in detail, viz. E. centroboli Gorter, E. chaleponci Gorter and E. zinophorae Gorter.
Studies in the Ericoideae (Ericaceae). XVI. Six new species of <i>Erica</i> from the Western Cape, South Africa.
Authors: Oliver E. G. H. , Oliver I. M. 
Published: July 2015

Six new species of Erica L. from the mountains of the Western Cape are described: E. alnea E.G.H. Oliv., E. hexensis E.G.H. Oliv., E. hispiduloides E.G.H. Oliv. and E. tarantulae E.G.H. Oliv. from the inland areas centred on the Hex River Mountains; E. hottentotica E.G.H. Oliv. and E. magistrati E.G.H. Oliv. from the Hottentots Holland Mountains between Stellenbosch and Somerset West.
An annotated list of Urediniomycetes (rust fungi) from South Africa 1: Melampsoraceae and Pucciniaceae, excluding <i>Puccinia</i> and <i>Uromyce</i>s
Authors: Van Reenen M. 
Published: July 2015

Up-to-date information is given on the identity, occurrence, nomenclature, host ranges, geographical distribution and literature references of the Urediniomycetes in South Africa. Species of the family Melampsoraceae and all species of the family Pucciniaceae other than those in the genera Puccinia Pers. and Uromyces (Link) Unger are listed. New species records since 1945 include the following: Melampsora allii-populirui Kleb.. Melampsora coleosporioides Dietel. Melampsora laricipopulina Kleb.. Melampsora medusae Thiim., Frommea obtusa-duchesneae (Arthur) Arthur. Hemileia gardeniae-thunbergiae Maubl. Roger. Phakopsora gossypii (Arthur) Hirats. F. Uromycladium tepperianum (Sacc.) McAlpine and Tranzschelia discolor (Fuckel) Tranzschel M.A. Litv. Although many species of rusts have already been recorded, these are thought to represent only a small percentage of the rust population in southern Africa. Furthermore, only a small portion of rust specimens at present housed at PREM have so far been studied. Continued research on this economically important group of fungi is therefore essential.
New combinations and a complete list of <i>Asparagus</i> species in southern Africa (Asparagaceae)
Authors: Fellingham A. C. , Meyer N. L. 
Published: July 2015

With only flower sexuality differing. Protasparagus can not be separated from Asparagus, neither at generic nor at subgeneric level. No significant differences in the degree to which filaments were connivent were observed between species placed under Myrsiphyllum and those under Protasparagus/Asparagus. All southern African species of Asparagaceae are therefore reinstated under Asparagus and listed here without recognition of subgenera. Several new combinations are made.
Cytogenetic studies in some representatives of the subfamily Pooideae (Poaceae) in South Africa. 2. The tribe Aveneae, subtribes Phalaridinae and Alopecurinae
Authors: Spies J. J. , Spies S. K. , Van Rooyen S. M. C. , Malan A. F. , Liebenberg E. J. L. 
Published: July 2015

This is a report on chromosome numbers for the subtribes Phalaridinae and Alopecurinae (tribe Aveneae) which are. to a large extent, naturalized in South Africa. Chromosome numbers of 34 specimens, representing nine species and four genera, are presented. These numbers include the first report on Agrostis avenacea Gmel. (n = 4x = 28). New ploidv levels are reported for Phalaris aquatica L. (n = x = 7), Agrostis barbuligera Stapf var. barbuligera (n = 2x = 14 and n = 4x = 28) and A. lachnantha Nees var. lachnantha (n = 3x = 21).
Five new species of <i>Lachenalia</i> (Hyacinthaceae) from arid areas of Namibia and South Africa
Authors: Duncan G. D. 
Published: July 2015

Five new species of Lachenalia are described: L. aurioliae G.D.Duncan from the Little Karoo and Great Karoo, L. obscura Schltr. ex G.D.Duncan from Namaqualand, the Kamiesberg, the western Great Karoo and the Little Karoo, L. inconspicua G.D.Duncan from the Kamiesberg, western Bushmanland and southern Namaqualand, L. marlothii W.F.Barkerex G.D.Duncan from the Calvinia-Sutherland region of the western Great Karoo, and L. xerophila Schltr. ex G.D.Duncan from northwesternand central Namaqualand, and western Bushmanland.
Comparative field performance of three different gas exchange systems
Authors: Midgley G. F. , Veste M. , Don Willert D. J. , Davis G. W. , Steinberg M. , Powrie L. W. 
Published: July 2015

We compared portable and continuously monitoring gas exchange systems under field conditions, using Protea glabra Thunb. as a test species. The aim was to determine if the same patterns of gas exchange and ancillary parameters could be obtained with rather different measurement systems, and whether the same interpretation and conclusions about environmental control of gas exchange could be drawn. The following systems were compared: 1, a ‘closed’ portable 1RGA manufactured by Ll-Cor (LI-6200); 2, an ‘open’ portable porometer manufactured by Walz; and 3, a continuously monitoring minicuvette system with temperature control facility, also manufactured by Walz. All three systems yielded similar diurnal curves for CO2 uptake, although absolute flux values for the minicuvette system were lower than those obtained for the portable systems. This was likely due to stem respiration and self-shading of leaves on the shoot enclosed in the minicuvette. Differences in sampling technique between the two portable systems, primarily with regard to changes in leaf orientation, resulted in some differences in absolute values of gas fluxes and ancillary parameters such as leaf temperature and leaf to air vapour pressure difference. However, data from all three systems allowed similar interpretations to be made about the environmental dependencies of gas exchange patterns. It appears that each system has certain drawbacks associated with widely varying field conditions. A combination of portable and continuous monitoring techniques would seem to be the most powerful approach to investigating the gas exchange patterns of terrestrial plants in their natural environment.
A floristic classification of the vegetation of a forest-savanna boundary in southeastern Zimbabwe
Authors: Mapaure I. 
Published: July 2015

The vegetation of Chirinda Forest boundary was classified into eight types using Two-way Indicator Species Analysis (TWINSPAN) and Detrended Correspondence Analysis (DCA). The moist forest comprises three types: Strychnos mellodora-Chrysophyllum gonmgosanum Forest on deep dolerite soils; Chrysophyllum gorungosanum-Myrianthus holstii Forest on shallow dolerite soils; and Teclea iiobilis-Ehretia cymosa Forest on drier, but deep dolerite soils. The non-forest vegetation comprises five types: Themeda triandra Grassland on shallow dolerite soils; Psidium guajava Bushland on sandstone; Bridelia micrantha-Harungana madagascariensis Mixed Woodland not restricted to any one particular soil type; Acacia karroo- Heteropyxis dehniae Woodland on shallow soils derived from sandstone but sometimes on dolerite; and Julbemardia globiflora-Brachystegia spiciformis (Miombo) Woodland on sandstone.
Studies in the liverwort genus <i>Fossombronia</i> (Metzgeriales) from southern Africa. 9. A new species from Mpumalanga and KwaZulu-Natal, with notes on other species
Authors: Perold S. M. 
Published: July 2015

A new species of Fossombronia, F. renateae, from Mpumalanga and KwaZulu-Natal in southern Africa is described. It is distinguished by its reflexed, undulating leaves and often stipitate pseudoperianth with a highly convoluted mouth, as well as by completely or incompletely reticulate spores and usually by short, blunt elaters with two spirals which often form rings or coils. Notes are provided on two unnamed species from Mpumalanga which cannot be fully described as yet, since ripe spores are not available for study. Brief references are made to some tropical African species.
Itinerary and specimen list of M.A. Pocock’s botanical collecting expedition in Zambia and Angola in 1925
Authors: Balarin M. G. , Brink E. , Glen H. F. 
Published: July 2015

Mary Agard Pocock, bom in Rondebosch in 1886, and best known as an algologist, was also a ‘trailblazer' in the biological exploration o f Angola. She, and the ethnologist Dorothea Bleek, undertook a scientific expedition which started at Livingstone, Zambia, and ended at Lobito Bay, Angola, during the dry season, from April to October 1925.During the journey Mary Pocock collected ± 1 000 specimens in the Zambesian region o f endemism (II). as delineated by White (1983) o f which 12 were considered to be species novae. Many o f the specimens were painted by Mary. Some original paintings are housed in the Selmar Schonland Herbarium, Grahamstown (GRA). She also kept detailed diaries o f her route past villages and through the different vegetation types. Collecting locations, with specimen numbers relating to her collection in the Zambesian region, are indicated. An alphabetical list o f all the species collected by Mary Pocock during this exploration has been compiled
Studies in the Sphaerocarpales (Hepaticae) from southern Africa. 2. The genus <i>Sphaerocarpos</i> and its only local species, <i>S. stipitatus</i>
Authors: Perold S. M. 
Published: July 2015

A taxonomic account of the genus Sphaerocarpos, subgenus Austrosphaerocarpos, and its only local species, S. stipitatus Bisch. ex Lindenb., is presented here. These taxa are classified in the suborder Sphaerocarpineae of the order Sphaerocarpales, for which short notes and a key to all three constituent suborders, Monocarpineae, Riellineae andSphaerocarpineae, are provided.
Wetland vegetation in the North-eastern Sandy Highveld, Mpumalanga, South Africa
Authors: Burgoyne B. M. , Bredenkamp G. J. , Van Rooyen N. 
Published: July 2015

The wetland vegetation of the high mountain grasslands of Mpumalanga w as sampled by using stratification based on geology and land types. Floristic data were classified by TWINSPAN procedures and refined by using the Braun-Blanquet method. This resulted in the recognition of four major w etland plant communities w hich are subdiv ided into eleven minor plant communities. The major communities include the Phragmites australis Wetland occurring in relatively deep water, the Miscanthus junceus Wetland from moist river banks and wet drainage lines, the Eragrostis biflora-Stihurus allopecuroides Moist Grassland restricted to moist, poorly drained soils w ith a high water table, and Arundinella nepalensis Moist Grasslands on black vertic soils.
Five new species of <i>Erica</i> (Ericaceae) from the Swartberg Range, Western Cape, South Africa and a note on <i>E. esterhuyseniae</i>
Authors: Oliver E. G. H. , Oliver I. M. 
Published: July 2015

Descriptions are provided of five new species of Erica L. from the Klein and Groot Swartberg Mountains in Western Cape,South Africa. The two known populations of E. dolfiana E.G.H.Oliv. are confined to the stony, southern slopes of two well- separated areas. E. taylorii E.G.H.Oliv. is also known from two well-separated populations on the Swartberg but with the others in the ( ederberg. The other three new species are allied to E. esterhuyseniae Compton: E. chionodes E.G.H.Oliv., with brilliant white flowers, occurs only in seepage zones in two well-separated areas, E. oreotragus E.G.H.Oliv. (syn. E. esterhuyseniae Compton var. trimera Compton) with pale pink to white flowers and E. blaerioides E.G.H.Oliv. with white flowers, are widespread in the central and western Swartberg Range.
The genus Erica (Ericaceae) in southern Africa: taxonomic notes 1
Authors: Oliver E. G. H. , Oliver I. M. 
Published: July 2015

This is the first in a series of notes on the southern African species of Erica L. which are currently recognized. Brief synonymy citing only the important revisions and synonyms is given, as w ell as comments on the status and diagnostic char­acters of each species. One new species, E. petrusiana E.G.H.Oliv. I.M.Oliv. and 14 new subspecies are described, and11 species are reduced to subspecific status. Where necessary drawings of important features and variations are given. Part 1 covers the first 35 species (Sections 1-3).