The Cheilanthes hirta complex and allied species (Adiantaceae/Pteri­daceae) in southern Africa

Bothalia - African Biodiversity & Conservation

 
 
Field Value
 
Title The Cheilanthes hirta complex and allied species (Adiantaceae/Pteri­daceae) in southern Africa
 
Creator Jacobsen, W. B. G. Jacobson, N. H. G
 
Subject — Adiantaceae; Cheilanthes hirta Swartz complex; evolution; key; phytogeography; Pteridaceae; southern Africa; spore morphology
Description The very variable complex of plants until now ascribed to Cheilanthes hirta Swartz, together with some derived or allied species, is investigated. The type of the species as established by N. C. Anthony (1984), is accepted. Three new varieties are distinguished: Cheilanthes hirta Swartz var. brevipilosa W. N. Jacobsen, var. inferacampestris W. N.Jacobsen and var. nemorosa W. N. Jacobsen. One new form of Cheilanthes hirta var. brevipilosa W. N. Jacobsen is recognized: forma waterbergensis W. N. Jacobsen. Var.  laxa Kunze (1836) is given the new status of forma:  Chei­lanthes hirta var. brevipilosa W. N. Jacobsen forma laxa (Kunze) W. N. Jacobsen. Three allied species are discussed and included in the key to all taxa mentioned. Taxa are described and information given includes notes on distribution and ecology. Special attention is paid to spore morphology. Most taxa are illustrated by a habit photo, and all by line drawings and scanning electron micrographs (SEM) of the spores. Possible evolutionary conclusions, particularly on the nature of the spores and on frond dimensions in relation to geographical distribution and climate are discussed.
 
Publisher AOSIS
 
Contributor
Date 1988-10-23
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format application/pdf
Identifier 10.4102/abc.v18i1.982
 
Source Bothalia; Vol 18, No 1 (1988); 57-77 2311-9284 0006-8241
 
Language eng
 
Relation
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:

https://journals.abcjournal.aosis.co.za/index.php/abc/article/view/982/934
 
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Rights Copyright (c) 1988 W. B. G. Jacobsen, N. H. G Jacobson https://creativecommons.org/licenses/by/4.0
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