Andropogon.\ clvii. gramine^j (Stapf). 
233 
nerves somewhat stout, prominent, close. Inflorescence an elongate 
lax spat heat e panicle up to 24 ft. long, of about 6 distant 2-4-rayed 
often mixed tiers ; spathes like the preceding leaves but with narrow 
to subulate spinulously ciliate blades ; rays very slender, filiform, 
very unequal, if compound 2-noded and up to over 1 ft. long. Spa- 
theoles very narrow, acute or with small subulate blades, at length 
tightly inrolled, reddish, glabrous, 2J-3 in. long ; peduncles erect 
or arching, ultimately exceeding the sheaths by 1-2 in. Racemes 
4-8, in a corymboid panicle, the lateral sessile, 1J-3 in. long, lax, 
slender, flexuous ; joints filiform, much compressed towards the base, 
very gradually and slightly widened upwards, 24-3 lin. long, all 
shortly ciliate from the middle upwards, sometimes more on one side 
than the other, hairs J-l lin. long, tips slightly cupular. Pedicels 
similar, up to 2 lin. long. Sessile spikelet linear -lanceolate, reddish 
or purplish, 2J-2f lin. long ; callus and its beard very short. Glumes 
subequal, firmly membranous, lower minutely 2-denticulate, slightly 
sunk between the stout and scabrid keels, and with one nerve inside 
and close to each keel ; upper glume acute, 3-nerved, ciliolate. Lower 
floret reduced to a hyaline oblong acute ciliolate valve faintly 2- 
nerved upwards, 2 lin. long. Upper floret ^ : valve narrow, oblanceo- 
late-oblong, shortly 2-fid with the lobes narrow and very acute, 
ciliolate, If lin. long, 3-nerved below ; awn up to 4 lin. long, very 
fine, flexuous, indistinctly differentiated into column and bristle ; 
valvule ovate-oblong, f lin. long, hyaline, glabrous. Anthers up to 
§ lin. long. Pedicelled spikelets , lanceolate, acutely acuminate, 
2- 24 lin. long, usually darker than the sessile, occasionally much 
reduced, neuter and subulate ; glumes chartaceous, subequal, the 
lower 5-7-nerved, the upper 3-nerved ; valves of both florets hyaline, 
3- 1 -nerved, ciliolate, 14-1 J lin. long. — Durand & Schinz, Consp. FI. 
Afr. v. 727. 
Nile Land. Sudan : Jur ; Genana, near Ghattas’ Great Seriba, Schweinfurth , 
2600 ! Kutschuk Ali’s Seriba, Schweinfurth, 4240 ! 
17. A. Brazzae, Franch. in Bull. Soc. Hist. Nat. Autun , viii. (1895) 
326 (18 of reprint). Perennial. Culms (base not known) erect, tall, 
smooth, glabrous. Leaf-sheaths terete, striate, glabrous and smooth, 
not auriculate ; ligules a narrow ciliolate scarious rim ; blades linear, 
gradually passing at the base into a sheath, long-attenuate to a fine 
point, the upper up to \ ft. by 1J lin. wide (at the middle), glabrous 
or with a few hairs at the base, margin scabrid, spinulosely ciliolate 
upwards, midrib slender, lateral nerves close. Inflorescence an 
elongated spat heat e panicle up to almost 2 ft. long, of about 6 distant 
2- (rarely 3-) rayed tiers or the lowest branch undivided at the base, 
1-noded ; spathes like the preceding leaves, but with more reduced 
blades ; rays very slender, filiform, very unequal, erect, strict, 
lower internode 14-2 in. long. Spatheoles very narrow, acute, 
