genus descriptions: SSTAs

Sinarundinaria

Nakai
Description:
Fruticose or arborescent gregarious bamboos 2
Distribution:
Species
Source:
SSTA
Synonym(s):
Arundinaria Michx.: 73 (1803); Burtt Davy et al.: 55 (1958); Launert: 14 (1971); Watson & Dallwitz: 142 (1994); White et al.: 102 (2001).

Mon, 2009-03-23 15:23 -- Emily Smith
Saccharum

L.
Description:
Rhizomatous perennials; culms 2
Distribution:
Species 35
Source:
SSTA

Mon, 2009-03-23 15:23 -- Emily Smith
Poecilostachys

Hack.
Description:
Trailing perennials, often rooting at nodes; culms up to
Distribution:
Species
Source:
SSTA
Synonym(s):
Chloachne Stapf; Simon: 30 (1971); Clayton & Renvoize: 545 (1982).

Mon, 2009-03-23 15:23 -- Emily Smith
Neyraudia

Hook.f.
Description:
Tall, reed-like perennials with short, scaly rhizome ; culms up to 4 m high and up to 10 mm in diameter, somewhat woody. Leaf blade mostly involute, filiform at apex. Inflorescence a large plumose panicle. Spikelets 2
Distribution:
Species 2, Old World tropics; sthn trop. Afr. 1: Neyraudia arundinacea (L.) Henr., Malawi.
Source:
SSTA

Mon, 2009-03-23 15:23 -- Emily Smith
Oreobambos

K.Schum.
Description:
Tall woody bamboos. Leaf blade lanceolate to oblong-lanceolate, usually glabrous, finally disarticulating from sheath. Inflorescence narrow, slender, large, composed of clusters of spikelets on opposite sides of its branches; each cluster borne in axil of a deciduous sheath which is usually without a lamina. Spikelets sessile, 2-flowered, terete or somewhat laterally compressed, muticous subtended by a pseudo-involucre of broad coriaceous bracts; florets both bisexual; rachilla disarticulating beneath upper glume, produced as a fine bristle beyond upper floret; lower glume absent; upper glume 11
Distribution:
Monospecific: Oreobambos buchwaldii K.Schum., Zambia, Malawi, confined to the eastern African mountains.
Source:
SSTA

Mon, 2009-03-23 15:23 -- Emily Smith
Phyllorachis

Trimen
Description:
Perennial grasses, sometimes of shrubby habit, with branched slender culms. Leaf blade lanceolate, narrowly elliptic to oblong-lanceolate; ligule small, ciliate. Inflorescence spike-like, terminal, consisting of short racemes inserted along a leaf-like rachis; axillary inflorescences all bisexual; racemes short, usually not more than 1 or 2; spikelets longer than those of terminal inflorescences, with elongated stigmas protruding from subtending leafsheaths; terminal inflorescences bisexual, lowermost spikelet of each raceme female, the following male , sometimes reduced spikelets present; rachilla not extended. Male spikelets: lower glume rather narrow, almost subulate, acute; upper one 1-nerved, ovate-oblong, up to ? as long as spikelet; lemma of inferior floret 3-nerved, coriaceous; lemma of upper floret 5
Distribution:
Monospecific: Phyllorachis sagittata Trimen, trop. Africa; sthn trop. Afr.: Angola, Zambia, Zimbabwe, Malawi, Mozambique.
Source:
SSTA

Mon, 2009-03-23 15:23 -- Emily Smith
Homozeugos

Stapf
Description:
Caespitose perennials; culms 1
Distribution:
Species 6, central Africa; sthn trop. Afr. 6, Angola, Zambia, Malawi.
Source:
SSTA

Mon, 2009-03-23 15:23 -- Emily Smith
Hubbardochloa

Auquier
Description:
Annuals, purplish, loosely caespitose; culms erect or geniculately ascending, very slender, usually branched from lower nodes. Leaf blade linear-lanceolate, flat, abruptly contracted at base, apex acute. Inflorescence a delicate open panicle, lower branches subverticillate. Spikelets 1-flowered, fusiform, disarticulating below floret; glumes 1-nerved, thinly membranous, longer than floret, persistent; lemma 1-nerved, hyaline, thinner than glumes, entire at apex and with a long flexuous terminal awn; palea absent. Caryopsis fusiform; pericarp free.
Distribution:
Monotypic genus: Hubbardochloa gracilis Auquier, central Africa; sthn trop. Afr., Zambia.
Source:
SSTA

Mon, 2009-03-23 15:23 -- Emily Smith
Isachne

R.Br.
Description:
Rambling perennials; culms up to 0.6 m high, geniculately ascending from a prostrate base rooting at nodes. Leaves linear to lanceolate; ligule a line of hairs. Inflorescence a panicle. Spikelets 2-flowered. Florets similar or dissimilar, separated by an abbreviated internode, lower floret sometimes male; rachilla disarticulating below each floret. Glumes subequal,
Distribution:
Species
Source:
SSTA

Mon, 2009-03-23 15:23 -- Emily Smith
Zonotriche

(C.E.Hubb.) J.B.Phipps
Description:
Tufted perennials up to 1.5 m high; culms slender, erect or ascending. Inflorescence a panicle bearing spikelets in triads with connate pedicels; peduncle developing a fragile hook-like flexure at maturity and triads falling entire. Spikelets brown, upper florets eventually disarticulating; lower glume ? to as long as spikelet, villose with tubercle-based white or golden hairs; lower lemma 5-nerved; upper lemma with or without hair tufts, bilobed, with a persistent geniculate awn; callus short, broadly rounded; palea keels with or without narrow wings, but these not clasped by the lemma.
Distribution:
Species 3, central Africa; sthn trop. Afr. 2, Angola, Zambia, Zimbabwe, Malawi, Mozambique.
Source:
SSTA
Synonym(s):
Piptostachya (C.E.Hubb.) Phipps; Simon: 23 (1971) as synonym.

Mon, 2009-03-23 15:23 -- Emily Smith

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