■ Ischcemum.\ 
CL VII. GR AMINE iE (Stapf). 
31 
lanceolate obtuse or acute ciliolate lobes, hyaline, 2-3 lin. long, 3- 
nerved, awn 3|-5 lin. long, twisted, sometimes purplish ; valvule 
linear-lanceolate, acute, somewhat shorter, hyaline, nerveless. 
Anthers 1J lin. long. Pedicelled spikelet lanceolate, acuminate, up 
to 2J lin. long, with a $ or 8 flower in the upper floret, or more or 
less reduced, sometimes consisting of two small glumes only. — 
Durand & Schinz, Consp. FI. Afr. 697. Andropogon brachyatherus, 
Hochst. in Flora, 1844, 241 ; Rich. Tent. FL Abyss, ii. 457. A. afer , 
Gmelin, Syst. Yeg. vii. 166 % Gir Gir, Bruce, Trav. v. App. 47, with 
plate. 
North Central. Bagirmi : Moito-Baro ; .Avnni, Chevalier , 9823 ! 
Nile Land. Kordofan, Kotschy, 368 : Broun, 908 ; Sudan : Senaar, 
Roziani ! Abyssinia: Walcha, in swamps, Schimper, 1635! Gallabat: Matamma, 
Schweinfurth, 1101. ! 1102 ! British East Africa : without precise locality, 
Powell, 131 ! 143 ! 
Mozambique Distr. Portuguese East Africa : Shamvara, between Tete and 
the sea coast, Kirk, 1 ! 
The tomentum is extremely variable and the appearance of the inflorescences 
at the first glance on that account very different, but as the spikelets show 
practically the same structure it does not seem expedient to distinguish varieties 
within the species. Chevalier’s specimen has the upper joints and spikelets 
fairly hairy, whilst the lower are absolutely glabrous. Powell’s, on the other 
hand, are villous almost throughout the inflorescence. The spikelets of Kirk’s 
and Schweinfurth’s plants are almost glabrous and in the former mostly, in the 
latter occasionally, only 2-|-2| lin. long. 
3. I. tallanum, Rendle inJourn. Bot. 1893, 359. Perennial. Culms 
ascending, many-noded, sparingly branched upwards with the 
branches flowering, up to 2 ft. long, glabrous, slender. Leaf-sheaths 
tight, terete, glabrous, more or less hairy upwards, bearded or 
glabrous at the nodes ; ligules membranous, obtuse, under 1 lin. 
long ; blades lanceolate to linear-lanceolate, very acute, up to 24 in. 
long and 4 lin. vide, flat, glabrous or more or less hairy. Racemes 
3, about 1 in. long, the lower shortly peduncled, hairy ; joints slender, 
triquetrous, ciliate along the angles, over 1 lin. long, beaxded at the 
base ; pedicels similar but 2-angled, parallel to, but distant from, 
the joints. Sessile spikelet ovate-lanceolate from a small well- 
marked square callus, about 24 lin. long ; glumes subequal, lower 
subchart aceous, shortly 2-fid, subconvex or almost flat oh the back, 
brownish hairy and finely striate above the middle, glabrous and 
shining below, intracarinal nerves about 5, extracarinal 1 or 2 ; 
upper glume boat-shaped, lanceolate, long-acuminate, slightly ex- 
ceeding the lower, 5-nerved, sparingly hairy on the back. Lower 
floret 8 • valve subhyaline, lanceolate in profile, acute, 1-3-nerved, 
ciliate ; valvule hyaline, ciliate and 2-nerved, slightly shorter. 
Upper floret $ : valve ovate-oblong, deeply 2-fid, hyaline, glabrous, 
3-nerved, awn from the sinus slender, 4 lin. long, twisted, kneed from 
below the middle ; valvule slightly shorter than the valve, faintly 
2-nerved, hyaline. Styles 1 lin. long : stigmas IJlin. long. Pedicelled 
