Original Research

Taxonomy of the genus Ehrharta (Poaceae) in southern Africa: the Villosa group

G. E. Gibbs Russell
Bothalia | Vol 17, No 2 | a1035 | DOI: https://doi.org/10.4102/abc.v17i2.1035 | © 1987 G. E. Gibbs Russell | This work is licensed under CC Attribution 4.0
Submitted: 23 October 1987 | Published: 23 October 1987

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Abstract

The Villosa species group in the genus  Ehrharta Thunb. is differentiated morphologically by very large, profusely hairy, bearded and aristate spikelets and by a suffrutescent habit, with culms woody at the base and with reduced leaf blades. The Villosa group is composed of two species, one with a variety: E. thunbergii Gibbs Russell, nom. nov., E. villosa Schult. f. var.  villosa and E. villosa var. maxima Stapf. Members of the group occur on sandy soils in the Succulent Karoo and Fynbos Biomes, along the west coast in Strandveld and on the southern coast as far east as the Fish River. Morphologically, the group appears to be related to the Calycina and Capensis groups.


Keywords

Fynbos; Capensis; <i>Ehrharta</i>; Poaceae; Succulent Karoo; taxonomy

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