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.
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