Original Research

Leaf anatomy of the South African Danthonieae (Poaceae). XIII. Pentameris macrocalycina and P. obtusifolia

R. P. Ellis
Bothalia | Vol 15, No 3/4 | a1851 | DOI: https://doi.org/10.4102/abc.v15i3/4.1851 | © 1984 R. P. Ellis | This work is licensed under CC Attribution 4.0
Submitted: 06 December 1984 | Published: 06 December 1984

About the author(s)

R. P. Ellis, Botanical Research Institute, Department of Agriculture & Water Supply, South Africa

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The leaf blade anatomy of Peniameris macrocalycina (Steud.) Schweick. and P. obtusifolia (Hochst,) Schweick. is described and illustrated. The leaf anatomy of these two species shows many similarities suggesting a close relationship between them. A slight problem appears to exist with the circumscription of P. obtusifolia and a minor taxonomic adjustment may result in a classification which agrees totally with that based on leaf anatomy. This would result in details of the leaf outline being diagnostic for these two taxa. The nomenclature of P. obtusifolia is also very confusing and clarification is needed by reference to the relevant type specimens. P. macrocalycina and P. obtusifolia together with  P. longiglumis (Nees) Stapf, appear to form a distinct genus and do not bear close anatomical resemblances to either P. thuarri Beauv. or P. dregeana Stapf.


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