Sorghum.'] 
CLVII. GRAMINE^E (Stapf). 
131 
middle nerve stout upwards and running out into a short point. 
Anthers over 1 lin. long. Grain exserted from and more or less 
exceeding the gaping glumes, broad-elliptic to slightly obovate- 
elliptic in outline, dorsally compressed, convex on both sides, 2 J lin. 
by 2 lin., white or yellowish and flushed with red from below or more 
or less apricot-orange and ivory-white, embryo-mark somewhat 
faint, elliptic, exceeding the middle of the grain, style-bases con- 
tiguous. Pedicelled spikelet neuter, persistent, lanceolate to linear, 
2 lin. long, whitish to reddish or brown, pubescent, glumes about 
9-nerved. — S. bicolor, Nees, FI. Afr. Austr. 86, not of Willd. S. 
Usorum, Nees, l.c. 87. Holcus Caffrorum, Thunb. Prodr. 20 ; FI. 
Cap. ed. i. 110, ed. Schult. 109. Andropogon IJsorum, Steud. Syn. 
PI. Glum. i. 392. A. Sorghum, var. Neesii, Koern. in Koern. & Wern. 
Handb. Getreideb. i. 315 ; Stapf in Dyer, FI. Cap. vii. 318, and var. 
Usorum, Koern, l.c. 312 : Stapf, l.c. A. Sorghum, vars. albidus, 
Usorum, rubicolor, Ondongce, and SchencJcii, Koern. in Bull. Herb. 
Boiss. ii. 226, 227 (the Ondonga specimens). A. Sorghum, subsp. 
sativus, var. Neesii, Hack, in DC. Monogr. Phan. vi. 517, and var. 
Usorum, Hack. l.c. 512. 
Lower Guinea. Damaraland : Ondonga ; Olukonda, Schinz ! 
Mozambique Distr. Rhodesia : Victoria Falls, a stray plant, Kolbe, 3138 ! 
Cultivated in South Africa in several races mainly characterised by the colour 
of the mature glumes and grains, also in Mauritius and, under the name of Kafir, 
in North America. To which of them Kolbe ’s specimen belongs is uncertain as 
it is in flower. K. Schumann (in Engl. Pfl. Ost-Afr. B. 47) says that a specimen 
collected inTuru, S.E. of Tabora, Stuhlmann, 4246, agrees exactly with Drege’s 
sample referred by Nees to Sorghum bicolor, that is to S. Caffrorum. 
C vv^^-0 
19. S. caudatum^ Stapf. Annual. Culms slender or stout, tall, 
up to 14 ft. Leaf-sheaths overlapping, very finely silky-pubescent 
at the nodes ; ligules short, usually long-ciliate from the back ; 
blades linear-lanceolate from a broad base or the lower long-attenu- 
ated to a narrow base, up to over 1J ft. by 1-3 in., green, often 
blotched with red, more or less hairy to tomentose inside above the 
ligule and pubescent on the back at the junction with the sheath. 
Panicle erect, oblong, sometimes very narrow, very dense, perma- 
nently contracted or at length more or less secund, lobed and looser 
owing to the nodding or drooping mature branches, J-l ft. long, 
2-3 (rarely 4) in. wide ; branches whorled or scattered, numerous, 
lowest rather stout below, all more or less (often very much) flexuous, 
smooth to the touch or almost so, finely villous at the nodes or the 
lower for some distance from the base, otherwise more or less ciliate 
to glabrous, the longest not much over 3 in. long, undivided for 
2 ~li i n ; Racemes compact, very crowded, up to 3-noded, 2J-5 lin. 
long ; joints f-1 lin. long, flattened, white-ciliate, cilia up to J lin. 
long ; pedicels very similar, up to \ or (the terminal) to 1 lin. long, 
their tips more or less discoid if the spikelets are deciduous. Sessile 
