Poaceae
-
Panicoideae
-
Arundinelleae
-
Trichopteryx
Nees
Description
:
Annual or perennial, erect or trailing; culm often wiry
Leaf blade
linear-lanceolate, expanded, crinkled on one margin, reflexed; ligule a fringe of hairs
Inflorescence
a panicle, usually fairly dense, pedicels commonly setose; spikelets solitary or in pairs
Spikelet
brown, laterally to not noticeably compressed, disarticulating above glumes and between florets; glumes unequal, similar, narrowly ovate, membranous, ± persistent, 3-nerved; lower glume half as long as spikelet; upper glume as long as spikelet
Florets
2; lower floret male or sterile; lemma 3-nerved, not keeled, awnless; upper floret bisexual; lemma similar to firmer in texture than glumes, membranous to thinly coriaceous, 5-7-nerved, incised, 2-lobed, lobes finely awned, hairy, a conspicuous tuft of white hairs below each lobe, awned from sinus between lobes; awn geniculate, longer than body of lemma; callus short, semicircular, hairy; palea finely nerved, 2-keeled, keels not winged
Southern Africa
: Species 1:
Trichopteryx dregeana
Nees, Northern Province, Mpumalanga, KwaZulu-Natal to Eastern Cape
References:
CHIPPINDALL, L.K.A. 1955. A guide to the identification of grasses in South Africa. In D. Meredith,
The grasses and pastures of South Africa
. Central News Agency, Cape Town
CLAYTON, W.D. 1974.
Flora of tropical East Africa
.
Gramineae
(Part 2)
CLAYTON, W.D. & RENVOIZE S.A. 1986. Genera graminum. Grasses of the world.
Kew Bulletin
. Additional series 13
CONERT, H.J. 1957. Beiträge zur Monographie der
Arundinelleae
.
Botanische Jahrbücher
77
GIBBS RUSSELL, G.E., WATSON, L., KOEKEMOER, M., SMOOK, L., BARKER, N.P., ANDERSON, H.M. & DALLWITZ. M.J. 1990. Grasses of southern Africa.
Memoirs of the Botanical Survey of South Africa
No. 58
NEES AB ESENBECK, C.G.D. 1836 In J. Lindley,
A natural system of botany
.
Gramineae
, edn 2. Longmans et al., London
NEES AB ESENBECK, C.G.D. 1841.
Florae Africanae australioris illustrationes monographicae
. Prausnitz, Glogau
PHIPPS, J.B. 1964. Studies in the
Arundinelleae
(
Gramineae
). Classification of the taxa occurring in Bechuanaland, the Rhodesias & Nyasaland, and Moçambique.
Kirkia
4
STAPF, O. 1898-1900.
Gramineae
.
Flora capensis
7
WATSON, L. & DALLWITZ, M.J. 1994.
The grass genera of the world
, revised edn. CAB International, Oxon
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