Hyparrhenia.'] clvii. gramineje (Stapf). 
357 
appendage, up to 1 lin. long, lowest joint of the lower raceme 
obsolete, produced into an appendage like that of the lower base, 
upper joints, if present, and pedicels slender, filiform, 1J lin. long, 
shortly white ciliate. Homogamous pair of spikelets 1 at the base 
of the lower raceme only. Fertile spikelets lanceolate-oblong, 
subacuminate, flattened on the back and rounded on the sides, in- 
cluding the callus 3-3J lin. long, ashy-grey with reddish tips ; callus 
acute, up to f lin. long, densely white-bearded, uppermost hairs 
exceeding the callus by almost its own length. Glumes equal, 
chartaceous, the lower very narrowly truncate, greyish-pubescent, 
the short hairs dense below and arranged in lines between the nerves, 
more or less reduced to asperities towards the tips, or glabrescent 
except on the sides, nerves 9, very slender, margins narrowly in- 
volute, keels very faint, fine, short, scaberulous ; upper glume del- 
toid-acute to subtruncate, 3-nerved, ciliolate upwards. Lower 
floret reduced to a linear-oblong sub-2-nerved reversedly ciliate 
hyaline valve. Upper floret ^ : valves stipitiform, very minutely 
2- dentate, awn up to 2J in. long, fulvously pubescent ; valvule 0. 
Anthers over 1 lin. long. Pedicelled spikelets or neuter, linear- 
lanceolate, acuminate, glabrous, reddish-brown ; lower glume 
produced into a fine bristle about 3 lin. long, 11 -nerved, rigidly 
ciliolate along the keels : upper glume very acute, membranous, 
3- nerved, reversedly ciliate ; valves if fully developed hyaline, 
linear-oblong, reversedly ciliate, 1-nerved, 4 lin. long ; anthers 
2 lin. long. Homogamous spikelets similar to the pedicelled, but 
4 not aristulate. — Cymbopogon WelwitscJiii, Rendle in Cat. Afr. PL 
Welw. ii. 157. Andropogon Chrysopogon, Welw. ex Rendle l.c. 
Upper Guinea. French Guinea : Timbo, very common in rich deep soil, 
Pobeguin, 1796 ! 1797 ! Cameroons : Yaunde, 2600 ft., Zenker <£ Staudt, 98 ! 
Lower Guinea. Angola : Golungo Alto ; near Undele and Candombo, 
Welwitsch , 2955 ! near Sange, Welwitsch, 2956 ! Cataracts of the Cuango, 
Welwitsch, 3000 ! thickets near the Ambaca Road, Welwitsch. 7190 ! thickets 
near the base of the Queta Mountains, Welwitsch, 7248 ! 
y 41. H. gracilescens, Stapf. Annual, up to over 4 ft. high, with 
stilt-roots from the lowest nodes. Culms slender, terete, smooth, 
compressible, simple and 4-5-noded below the panicle. Leaf- 
sheaths terete, glabrous, the lower inrolled upwards and slipping 
off the culm, not produced into auricles ; ligules firmly scarious, 
truncate, glabrous, 1 lin. long ; blades linear from a long some- 
what attenuated or equally wide base, over 1 ft. by 2-3 lin., rather 
thin, glaucous, glabrous or more or less scattered with short fine hairs 
below ; margins scabrid, nerves somewhat rough on the upper side ; 
midrib slender, primary lateral nerves about 4 on each side, slender. 
Spatheate panicle interrupted below, narrowly oblong, lax, over 1 ft. 
long, of about 6-8 downwards distant (lowest internode up to over 
6 in. long), upwards rapidly approaching 3-8-rayed tiers ; compound 
