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- Title
Leaf anatomy and the occurrence of false veins in Asplenium (Aspleniaceae, Pteridophyta).
- Authors
Chaerle, Peter; Viane, Ronald L. L.
- Abstract
False veins in African afro-alpine (2000–4700 m) Asplenium species with long creeping rhizomes and highly dissected leaves are morphologically and anatomically similar to true veins but differ in the absence of a vascular bundle. False veins in Aspleniaceae may have originated by the fusion of leaf lobes, and are more similar to those in Angiopteris and Thelypteris than to those in Davallia and Hymenophyllaceae. Because false veins are long and extend from the leaf margin to the junction of the neighbouring true veins in A. actiniopteroides, A. goetzei, A. majus, A. praegracile, A. sp. nov. and A. uhligii, but short, not reaching this junction in A. decompositum, A. demerkense, A. kassneri, A. linckii and A. mildbraedii, and even absent in A. aethiopicum, A. lademannianum, A. simii, A. stipicellatum and A. volkensii, they can be used for identification in this enigmatic group of ferns. © 2004 The Linnean Society of London, Botanical Journal of the Linnean Society, 2004, 145, 187–194.
- Subjects
MOUNTAIN plants; SPECIES; LEAF anatomy; ASPLENIACEAE; POLYPODIALES; BOTANY
- Publication
Botanical Journal of the Linnean Society, 2004, Vol 145, Issue 2, p187
- ISSN
0024-4074
- Publication type
Article
- DOI
10.1111/j.1095-8339.2003.00272.x