Poaceae
-
Arundinoideae
-
Aristideae
-
Sartidia
De Winter
Description
:
Perennial, densely tufted, rhizomatous
Leaf blade
often rolled, reddish brown when dry; ligule a dense fringe of hairs
Inflorescence
a panicle, erect, narrow, usually interrupted, branches solitary or paired; spikelets solitary, pedicelled
Spikelet
not noticeably compressed, disarticulating above glumes; glumes ± equal, narrow, acute to acuminate, flat to rounded on back, with or without apical awns, glabrous; lower glume usually 3-nerved; upper glume 3-5-nerved, nerves evanescent
Floret
l, bisexual; lemma firmer than glumes, coriaceous, subcylindrical, somewhat dorsiventrally compressed, slightly tapering upwards, grooved ventrally with involute margins, glabrous and smooth or scabrid, 3-nerved, without an articulation, 3-awned; awns glabrous or scabrid, spreading, collectively laxly spirally contorted at base when mature, column, when present, somewhat twisted; callus well developed, acute, obtuse or shallowly bifid, densely but shortly hairy; palea small, scale-like, not indurated, usually coriaceous below, 2-keeled, 2-nerved, apex obtuse
Lodicules
2, membranous, ± as long as palea, many-nerved
Stamens
3
Ovary
glabrous; styles distinct, plumose
Caryopsis
dorsiventrally compressed, with deep ventral groove
x = 11
Nomenclature:
Sartidia
De Winter
De Winter: 137 (1963)
De Winter: 381 (1965)
Melderis: 95 (1971)
Clayton & Renvoize: 185 (1986)
Gibbs Russell et al.: 286 (1990)
Watson & Dallwitz: 836 (1994)
Distribution & Notes:
Global
: Species 4, Africa and Madagascar
Southern Africa
: Species 3, N Namibia, Northern Province and Mpumalanga
References:
CLAYTON, W.D. & RENVOIZE S.A. 1986. Genera graminum. Grasses of the world.
Kew Bulletin
. Additional series 13
DE WINTER, B. 1963. Notes on the genus
Aristida
L. (
Gramineae
).
Kirkia
3
DE WINTER, B 1965. The South African
Stipeae
and
Aristideae
(
Gramineae
). (An anatomical, cytological and taxonomic study).
Bothalia
8
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
MELDERIS, A. 1971.
Flora zambesiaca
10, 1
WATSON, L. & DALLWITZ, M.J. 1994.
The grass genera of the world
, revised edn. CAB International, Oxon
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