Sorghum\ 
CL VII. GRAMINE^E (Stapf). 
145 
on the inside, dark brown, whitish at the base, somewhat glossy, 
more or less silkily hairy, the subterminal keels scaberulous ; callus 
very short, obtuse, with a dense white beard, J-f lin. long ; upper 
glume coriaceous, broad - lanceolate, shortly acute, glabrous, 5- 
nerved. Valve of lower floret somewhat shorter than the glumes, 
oblong, hyaline, 2-nerved, ciliate ; of upper floret lanceolate, 
minutely 2-lobed, as long as the lower, hyaline, ciliolate upwards, 
faintly 3-nerved ; awn l|-lf in. long, kneed at and twisted below 
the middle, column dark brown, bristle pale. Valvule 0. Lodicules 
glabrous. Anthers i~i lin. long. — Andropogon bipennatus, Hack, 
in Flora, 1885, 142, and in DC. Monogr. Phan. vi. 537 ; Durand & 
Schinz, Consp. FI. Trop. Afr. v. 707. A. nutans , var. africanus, 
Franch., Contr. FI. Congo FranQ. 21. 
Upper Guinea. French Guinea : Kouroussa, PobSguin, 530 ! Northern 
Nigeria : Lokoja, Dalziel, 286 ! Cameroons : Yaunde, Zenker 6s Staudt, 561 ! 
Golombe, Macleod, 107 ! and between Golombe and Bipare. Macleod, 110 ! 
Nileland. Jur : between Gir and Ghattas’ Seriba, Schweinfurth, 2486 ! 
Lower Guinea. Gaboon : Ogowe ; plains of Lope, Thollon, 788 ! 1077. 
Angola : Benguella ; between Old Munonque and N’Jaia, gregarious, Goss- 
weiler, 3131 ! Cazengo, in thickets, Gossweiler, 5576 ! 5922 ! 
According to Hackel also in Madagascar. 
33. S. incompietum A Stapf. Annual, up to over 3 ft. high. Culms 
erect or more often geniculate at the base, and then usually rooting 
from the lowest nodes, simple, quite glabrous. Leaf-sheaths terete, 
rather tight, glabrous or more or less hairy from minute tubercles, 
delicately silky at the nodes, produced into auricles along the ligules ; 
ligules truncate, scarious, up to 1 lin. long ; blades linear, long- 
attenuated to a fine point, slightly narrowed towards the base, up to 
6 in. by 2J lin. (in the African specimens ; twice as large in some of 
the American), subglaucous, glabrous or more or less hairy like the 
sheaths, very finely scaberulous below and along the cartilaginous 
margins, midrib slender, lateral nerves fine, 3-4 on each side. Panicle 
usually narrowly oblong, up to 6 in. long, rarely longer, usually some- 
what contracted, shining ; rhachis smooth, glabrous ; branches 
6-2-nate, unequal, the longer divided from the base, the longest 
over 1 in. long and up to 6-noded, all capillary with turbinate 
hollowed-out tips, smooth, glabrous or sometimes more or less 
ciliate. Racemes reduced to a solitary spikelet accompanied by 
2 slender pedicels, about 1J lin. long, elegantly whitish-ciliate, cilia 
J lin. long. Spikelets lanceolate, 2-2J lin. long, J-f lin. broad. 
Glumes subchartaceous, whitish except at the reddish tips, lower 
minutely truncate, finely 9-nerved, dull, more or less silkily hairy 
to beyond the middle, the subterminal keels scaberulous ; callus 
very short, obtuse with a short silvery beard ; upper glume similar 
to the lower, but acute, narrower, 5-nerved and glabrous. Florets 
as in S. hipennatum, but the awn rather shorter. — Andropogon 
incompletus , J. S. Presl in C. B. Presl, Reliq. Haenk. i. 342. A. Galeottii, 
FL. TROP. AFR. VOL. IX. L 
