The genus Buglossoides (Boraginaceae) in southern Africa

Bothalia ◽  
2002 ◽  
Vol 32 (1) ◽  
pp. 9-13
Author(s):  
E. Retief ◽  
A. E. Van Wyk
Keyword(s):  
Southern Africa ◽  
Pollen Grains ◽  
Full Description ◽  
Southern Europe ◽  
Distribution Map ◽  
Flora Of Southern Africa ◽  
The Family ◽  
The World ◽  
Cereal Seed ◽  
Perennial Herbs

The genus Buglossoides Moench, a member of the family Boraginaceae. subfamily Boraginoideae. tribe Lithospermeae. is revised tor the Flora of southern Africa (FSA) region.  Buglossoides comprises about seven species of annual, biennial or perennial herbs and subshrubs native to Asia, southern Europe and northern Africa.  B. arvensis (L.) I.M Johnst.. a naturalized weed in many parts of the world, is the only member of the genus represented in the flora of southern Africa, presumably introduced with imported cereal seed. Although the similar polyaperturate pollen grains of  Buglossoides and Lithospermum support the view that they are congeneric, they are retained as separate entities here. Diagnostic characters, a full description, various illustrations and a distribution map of B. arvensis in southern Africa are given.

scholarly journals Pollen characters as taxonomic evidence in some species of Dipsacaceae from Iran

2017 ◽  
Vol 24 (2) ◽  
pp. 129-136 ◽  
Author(s):  
Ebadi-Nahari Mostafa ◽  
Nikzat-Siahkolaee Sedigheh ◽  
Eftekharian Rosa
Keyword(s):  
Pollen Morphology ◽  
Pollen Grains ◽  
Pollen Grain ◽  
Pollen Type ◽  
Upgma Tree ◽  
Pollen Characters ◽  
Exine Ornamentation ◽  
The Family ◽  
The World ◽  
Plant Taxon

Pollen morphology of nine species representing four genera: Cephalaria Schrad, Dipsacus L., Pterocephalus Vaill. and Scabiosa L. of the family Dipsacaceae in Iran has been investigated by means of scanning electron microscopy (SEM). The results showed that pollen grains were triporate and tricolpate. The pollen type of Scabiosa rotata Bieb. (tri- and tetraporate) is the first report in the world. The sizes of pollen grains fall into the classification group magna (pollen grain diameter 50–100 μm). Pollen shapes vary from preoblate to prolate and their polar views were triangulate and lobate. The exine ornamentation varies from gemmate in S. rotata to spinulate in the rest studied species. Species of Scabiosa have been dispersed in UPGMA tree that this confirmed the previous studies about taxonomic problems and species complexity in this genus. These results show the transfer of the some Scabisoa species to Lomelosia Raf. based on palynological characters. Pollen morphology of the family is helpful at the generic and specific level.Bangladesh J. Plant Taxon. 24(2): 129–136, 2017 (December)

The genus Wellstedia (Boraginaceae: Wellstedioideae) in southern Africa

Bothalia ◽  
2008 ◽  
Vol 38 (1) ◽  
pp. 57-63 ◽  
Author(s):  
E. Retief ◽  
A. E. Van Wyk
Keyword(s):  
Southern Africa ◽  
Arid Regions ◽  
Taxonomic Revision ◽  
Dwarf Shrub ◽  
Disjunct Distribution ◽  
Distribution Map ◽  
Strong Similarity ◽  
The Family ◽  
Northern Cape ◽  
The Arid Regions

This regional taxonomic revision of the genus  Wellstedia  Balf.f., a member of the family Boraginaceae  s.I. (including Hydrophyllaceae s.str.), is part of a series of publications on the Boraginaceae in southern Africa.  Wellstedia comprises six species, five in Socotra, Somalia and Ethiopia with the remaining one.  W. dinteri Pilg.. occurring in southern Africa.  W dinteri Pilg. subsp. dinteri occurs in Namibia and the Northern Cape, whereas the newly instated subspecies W. dinteri subsp. gracilior (D.R.Hunt) Retief A.E.van Wyk, based on W. dinteri Pilg. var. gracilior D.R.Hunt, is confined to Namibia only. The disjunct distribution of Wellstedia and numerous other plant and animal taxa between the arid regions of northeastern Africa and southern Africa is usually explained by the postulated periodic existence of an arid corridor between the two regions during the arid phases of the Pleistocene and even earlier.  Wellstedia is treated here in Wellstedioideae, a subfamily of Boraginaceae s.I. but is sometimes placed in a family of its own, Wellstediaceae Pilger. Morphologically Wellstedia displays strong similarity to genera of the Ehretioideae and also to certain members of the Hydrophyllaceae. The genus is characterized by a perennial, dwarf shrub habit, densely hairy leaves. 4-merous flowers, a terminal, bifid style and a 1- or 2-seeded capsule. A key to the two subspecies, diagnostic characters, a distribution map and illustrations of various macro- and micromorphological features are provided.

scholarly journals A revision of the family Sematophyllaceae (Bryophyta) in southern Africa

2019 ◽  
Vol 68 (1-2) ◽  
pp. 157-174 ◽  
Author(s):  
Paulo E.A.S. Câmara ◽  
Jacques van Rooy ◽  
Micheline Carvalho Silva ◽  
Robert E. Magill
Keyword(s):  
South Africa ◽  
Southern Africa ◽  
New Combination ◽  
Flora Of Southern Africa ◽  
The Family ◽  
Linear Leaf

Abstract In the Flora of southern Africa area, comprising the countries of South Africa, Namibia, Botswana, Lesotho and Swaziland, the moss family Sematophyllaceae consists of three genera (Trichosteleum, Donnellia and Sematophyllum) and nine species. Core sematophyllous taxa with collenchymatous exothecial cells, long rostrate operculum, linear leaf cells and differentiated alar cells are included in the family. Meiothecium fuscescens is transferred to Donnellia and a new combination made. Sematophyllum wageri is reduced to synonymy under S. brachycarpum and a lectotype is designated for S. dregei. Each species is described and its distribution mapped.

scholarly journals THE NORTH AMERICAN SPECIES OF NEMISTRINIDÆ

1883 ◽  
Vol 15 (4) ◽  
pp. 69-72 ◽  
Author(s):  
S. W. Williston
Keyword(s):  
North America ◽  
South America ◽  
North American ◽  
North American Species ◽  
Southern Europe ◽  
The North ◽  
The Family ◽  
The World ◽  
General Appearance

The family of Nemistrinidæ comprises throughout the world one hundred and ten described species, six or seven of which are from Southern Europe and three from North America; the remainder nearly equally distributed in Asia, Africa, Australia and South America. In their habits, so far as known, the species approach the Bombylidæ most closely, as also do many in their general appearance. Structurally they are of interest to the Dipterologist, on account of their intricate and diverse neuration, which in some species is almost Neuropter-like in the reticulation.Doubtless the number of our species will be augmented by future discoveries, but yet we can never expect a very material increase.

scholarly journals The plant family Asteraceae: 5. Classification and the subfamily Cichorioideae

2003 ◽  
Vol 22 (1) ◽  
pp. 45-49
Author(s):  
P. P.J. Herman
Keyword(s):  
Southern Africa ◽  
Plant Family ◽  
Flora Of Southern Africa ◽  
The Family

The classification of the plant family Asteraceae is discussed. The family belongs to the division Spermatophyta (Magnoliophyta), subdivision Angiospermae, class Dicotyledoneae (Magnoliopsida), subclass Asteridae, superorder Asteranae and the order Asterales and is divided into three subfamilies: the Barnadesioideae (not in Flora of southern Africa region), the Cichorioideae and the Asteriodeae. The subfamily Cichorioideae is further divided into eight tribes of which one (Liabeae) does not occur in southern Africa and one genus (Corymbium) is not assigned to a tribe. The subfamily Asteriodeae is divided into 10 tribes. The subfamily Cichorioideae and its tribes are more fully described in this article. The genera belonging to these tribes are listed and their distribution given.

Studies in the liverwort family Aneuraceae (Metzgeriales) from southern Africa. 1. The genus Aneura and its local representative

Bothalia ◽  
2001 ◽  
Vol 31 (2) ◽  
pp. 167-173 ◽  
Author(s):  
S. M. Perold
Keyword(s):  
Southern Africa ◽  
Distribution Map ◽  
The Family ◽  
Local Representative

This is the first of several projected articles dealing with the southern African Aneuraceae H.Klinggr. The family is cosmopolitan and comprises two subfamilies, only one of which, the Aneuroideae. with two genera. Aneura Dumort. and Riccardia Gray, occurs locally. Because of the taxonomic problems associated with this family and the scarcity of  fruiting material, only one taxon in the genus Aneura, A. pinguis (L.) Dumort., has so far been accepted in this treatment. This is not meant to imply, however, that A. pseudopinguis Herzog does not occur in southern Africa: only, that the specimens I have examined, all belong to A. pinguis. A description and illustrations of A. pinguis. together with a distribution map are provided.

Lectotypifications in the genera Bulnesia (Zygophyllaceae)

Phytotaxa ◽  
2015 ◽  
Vol 239 (3) ◽  
pp. 293 ◽  
Author(s):  
ANA CAROLINA GODOY-BÜRKI
Keyword(s):  
South America ◽  
Semiarid Regions ◽  
The Family ◽  
The World ◽  
Molecular Studies ◽  
Perennial Herbs ◽  
The Tropics ◽  
Arid And Semiarid

Zygophyllaceae Brown (1814, add literature) is distributed in arid and semiarid regions in the tropics and subtropics of the world, comprising 22 genera and 230–240 species of trees, shrubs, sub shrubs and annual or perennial herbs (Sheahan 2007). The family was first divided by Engler (1931) into seven subfamilies and 8 tribes and 4 subtribes. Nonetheless, recent molecular studies only support the recognition of three subfamilies (see Sheahan & Chase 1996, 2000), Larreoideae being the major representative of the family in South America.

scholarly journals A conspectus of Combretum (Combretaceae) in southern Africa, with taxonomic and nomenclatural notes on species and sections

Bothalia ◽  
2011 ◽  
Vol 41 (1) ◽  
pp. 135-160 ◽  
Author(s):  
M. Jordaan ◽  
A. E. Van Wyk ◽  
O. Maurin
Keyword(s):  
Southern Africa ◽  
Type A ◽  
Distinct Species ◽  
Species Level ◽  
Distribution Range ◽  
Molecular Evidence ◽  
Distribution Map ◽  
Flora Of Southern Africa ◽  
Taxonomic Information

Two subgenera of Combretum Loefl. occur in the Flora of southern Africa (FSA) region. Previous sectional classifications were assessed in view of molecular evidence and accordingly modified. Ten sections in subgen. Combretum, 25 species and eight subspecies are recognized. Subgen. Cacoucia (Aubl.) Exell Stace comprises four sections and seven species. C. engleri Schinz, C. paniculatum Vent. and C. tenuipes Engl. Diels are reinstated as distinct species separate from C. schumannii Engl., C. microphyllum Klotzsch and C. padoides Engl. Diels, respectively. C. schumannii occurs outside the FSA region. Records of C. adenogonium Steud. ex A.Rich., C. platypetalum Welw. ex M.A.Lawson subsp. oatesii (Rolfe) Exell and subsp. baumii (Engl. Gilg) Exell in Botswana are doubtful. C. celastroides Welw. ex M.A.Lawson subsp. orientale Exell is elevated to species level as C. patelliforme Engl. Diels. C. grandifolium F.Hoffm. is reduced to C. psidioides Welw. subsp. grandifolium (F.Hoffm.) Jordaan. Twenty-six names are lectotypified. The type, a full synonymy, other nomenclatural and taxonomic information, the full distribution range and a distribution map are provided for each taxon. Selected specimens examined are given for poorly known species. Keys to subgenera, sections and species are provided.

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