Cymbopogon .] clvii. gramine^ (Stapf). 
285 
Eritrea characterised by somewhat longer and more spreading cilia on the 
joints and pedicels. The localities given are the same as those quoted by 
him under A. Schcenanthus, var. genuinus , in Ann. Istit. Bot. Roma , viii. 28b, 
namely, Mai Giahan ( Pappi , 6626) in Dembelas, and Carajai ( Pappi , 6304) and 
Mansura (Pappi, 7207), both in Beni Amir. 
12. C. excavatus A Stapf. Perennial, with extra vaginal and 
frequently also scanty intravaginal shoots from a short rhizome, 
2-4 ft. high. Culms fascicled, erect or shortly ascending, slender 
to moderately stout, often wiry, 4-7-noded and usually simple 
(rarely with a long branch from one of the lower nodes) below the 
panicle, terete, glabrous, smooth, often waxy-pruinose below 
the nodes. Leaf-s heaths firm, tight, the lower at length slipping 
off the internodes and inrolling, persistent, glabrous, smooth, 2-4 
in. long, the upper shorter than the internodes ; ligules very short, 
rounded, scarious, rarely over 1 lin. long ; blades linear to linear- 
lanceolate, of the innovation-leaves from a more or less attenuated 
base, of the culm-leaves from a broader rounded or subcordate but 
not clasping base, tapering to a long setaceous point, up to over 6 in. 
(sometimes 1 ft.) by 3-6 lin., flat, dull green or subglaucous, glabrous, 
smooth or the margins scabrid, midrib slender, primary lateral 
nerves 4-6, fine, prominent above. Spathaceous panicle narrow, 
mostly 3-6 in., rarely up to 1 ft. long or very much reduced, more 
or less interrupted below, sparingly divided and rather loose, or if 
much divided then contracted and dense ; internodes 3-6, rarely 
more, the lowest often equalling half the panicle or more, the upper 
rapidly decreasing ; lowest primary branch usually long-exserted from 
its sheath and undivided below, the following forming mixed tiers, 
rays of ultimate tiers mostly 3, finely filiform, 3-6 lin. long, glab- 
rous or ciliate upwards ; lowest subtending sheaths with shortened 
foliaceous or sometimes setaceous blades ; spathes lanceolate, finely 
acuminate, about 1 in. long, subherbaceous, pale green or tinged with 
purple, turning reddish. Spatheoles very narrow, lanceolate-linear to 
linear, 1-J in. long, subherbaceous to scarious, soon turning reddish or 
russet; peduncles filiform, 3-6 lin. long, glabrous. Racemes 2-nate, 
more or less divaricate and finally epinastically deflexed, 4-9 lin. long, 
greenish variously tinged with red or dull purple, slightly villous, one 
subsessile, the other with a short bare base, hairy on the inner side, 
linear or swollen and oblong, hard and shining upwards, base of the 
subsessile raceme swollen, hard, fused with the equally swollen 
and hard adjacent pedicel; fertile joints slender, filiform, about 
1 lin. long, glabrous on the back, shortly ciliate on the sides, cilia 
rapidly increasing in length near the tips, a few up to 1 lin. 
long, tips cupular with a thin denticulate rather large auricle; 
adjacent pedicels very similar. Homogamous pair 1 at the base 
of the sessile raceme. Fertile spikelets lanceolate-oblong, with 
the greatest width at the middle, rarely suboblanceolate with 
the greatest diameter just above the middle, subobtuse, 2-2| lin. 
