Ischemum. | GRAMINES (Stapf). 327 
Stamens 3; sometimes smaller or barren in the ¢ flower. 
Stigmas Bie iateivally exserted. Grain various. 
Gen cing S Li nih blades convolute when young, at length flat, ligules 
anous ; s 
generally m racemes compr join ave 
the inner es an oft n stout; spikelets sessile, — ully compre ery often rather 
broad, the pedicelled sometimes apparently laterally ees ig a median 
keel owing to the more or less complete suppression of one side. 
ee Species about 45, mainly in the tropics of i Old World. 
oth African species belong to the subgenus Hu-Ischemum (Hack 
P tas de thus :—racemes 2-nate, digitat e or ‘fascicled ; pedicelled spikelets 
- erally with 2 — ts, very rarely rudimentary; grain dorsally slightly 
mpressed, not grooved. 
Blades hy AES 3-6- lin. broad ; racemes Hc 
lower glume flat, 5-ribbed, keels winged near 
2-toothed reddish tip ” a) fasciculatum. 
Blades narrowly linear. 2 lin. broad; raceme s slender, 
glaucous ; lower glume dorsally depressed, sie ribbed, 
acute, keels not winged.. .. (2) glaucostachyum. 
1. I. fasciculatum (Brongn. Voy. sg? Bot. 73.) var. areuatum 
(Hack. Androp. in DC. Monogr. Phan. vi. 235); perennial ; culms 
ascending or atte from a slender creeping rhizome, more or less 
branched and fascicled near the base or simple, 1-3 ft. long, rather 
slender, glabrous, 5—~many-noded ; sheaths exceeding or more or less 
equalling the cca ogeheg subterete, glabrous, rarely hairy ; ligules very 
short, oo ciliate ; blades linear-lanceolate, setaceously acumi- 
“' : 
stout xuo 
triquetrous, 11-12 lin. long, slightly curved, keel (outer angle) ciliate 
with yellowish hairs : subsessile spikelets 2i~3 lin. long, reddish 
above, pedicel } lin. long or shorter, bearded at the base; lower 
below, flat and more or less distinctly 5-ribbed on the back, 
scaberulous, erm. hairy, keels winged near the tips, scabrid, 
intracarinal nerves 5-9; upper art slightly longer than the 
lower, lan diadieigts: acuminate, mucronate, 3~5-nerved, heeled above ; 
lower valve lanceolate, almost as a as the subtending glume, 
rigidly membranous, glabrous, 3-nerved, with an almost equal pale 
and a flower; upper valve oblong, deeply "e. fid, 2 lin. long, 
delicately membr ous, 3-nerved, lobes very broad, hyaline, ciliate, 
awn 4-5 lin. long, twisted below; pale as long as or. slightly longer 
than the valve, acute ; anthers 1 lin. long ; pedicelled spikelets 2} lin. 
long, reddish ; pedicel 2 lin. long, more or less hairy on the back ; 
lower glume lanceolate, boat-shaped, keeled, 7-9-nerved, loosely 
hairy, the oo as in the subsessile spikelets. Durand & Schinz, Consp. 
- Afr. v. 697. Spodiopogon areuatus, sa Fl. Afr. Austr. 97. 
Syn. Pl. G 
Andropogon arcuatus, Steud, lum. 1. 374. 
Coast Recion: Komgha Div. ; by the Kei ger ore 
Eastern Region: Natal; coast region, Sutherland! Durban Flat, 
Buchanan, 32! 109! in wood kaa marshy tg wotig the coast between the 
