Original Research

Leaf anatomy of the South African Danthonieae (Poaceae). XVII. The genus Chaetobromus

R. P. Ellis
Bothalia | Vol 18, No 2 | a1047 | DOI: https://doi.org/10.4102/abc.v18i2.1047 | © 1988 R. P. Ellis | This work is licensed under CC Attribution 4.0
Submitted: 23 October 1988 | Published: 23 October 1988

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

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The leaf anatomy of Chaetobromus Nees is described and illustrated. The genus has non-Kranz anatomy but with a low lateral cell count. The abaxial epidermis is not pooid as microhairs are present, the silica bodies are dumbbell-shaped and the stomatal subsidiaries are dome-shaped. From the sample o f 33 randomly selected speci­mens from throughout the distribution range o f the genus it was possible to identify four anatomical groups, each associated with a specific habitat and differing in vegetative morphology. These intergrade in a reticulate pattern and do not constitute discrete entities. It appears that the genus is monospecific with four poorly separated subspecific taxa.


<i>Chaetobromus</i>; <i>Danthonieae; leaf anatomy; Poaceae


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