470 cl vii. gramineje (Stapf). [. Digitaria . 
FI. Congo, 321 ; De Wild. & Durand, Contr. FI. Congo, i. fasc. 
ii. 72 ; not of Anderss. 
Upper Guinea. Sierra Leone : Jala, Bunting, 91 ! Mount Barclay, Bunting ! 
and without precise locality, W dwitsch, 2946 ! French Guinea : on cultivated 
ground near Timbo, Pobeguin, 1702 bis ! 1706 ! 1828 ! Segou, Lecard, 252 
partly ! Southern Nigeria : Lagos, MacGregor , 39 ! Opobo, Jeffreys, 5 ! 26 ! 
Lower Guinea. Gaboon : in savanahs at Munda, Soyaux, 430 ! French 
Congo : Brazzaville, Thollon, 372 ! Portuguese Congo : Cabinda, Gossweiler, 
6435! Belgian Congo: Cataract District; Tliysville, Vanderyst, 4417! 
Lukungu, 700-800 ft., Hens, 273 ! Lutete, 1800-2000 ft., Hens, 209''. Stanley 
Pool District ; Kisantu, Gillet, 1902 ! Kunzulu, Vanderyst, 5184 ! Angola : 
Pungo Andongo (?), W dwitsch, 7256! Pungo Andongo; Pedras de Guinga, 
W dwitsch, 2935 ! Cazengo, Gossweiler, 5738 ! 
Nile Land. Somaliland: Golis Range, Dr alee -Brockman, 150! Uganda: 
grassland near Namanzmyi, 4000 ft., Bummer, 2551 ! 
Mozambique Distr. German East Africa : Usambara ; Muoa, in old cultivated 
land, Holst, 3123 ! Kilimanjaro ; Marangu, Volkens, 1469 ! 
Also in South Africa, Madagascar, the Mascarenes and through India into 
Malaya. 
Digitaria tenuijlora, P. Beauv. ( Panicum tenuiflorum, R. Br. Prodr. 193) is 
apparently a perennial grass and has a stiff erect habit and long narrow leaves. 
Gossweiler’s specimens quoted above are distinguished by the presence of 
numerous fine spreading hairs on the internode below the inflorescence. 
38. D. exilis, Stapf in Kew Bulletin , 1915, 385. Annual. Culms 
erect or geniculate-ascending, over 1J ft. high, simple or sparingly 
branched from below, 5-8-noded, internodes mostly shortly exserted 
except the uppermost which is long-exserted. Leaf -sheaths tight or 
the ibwer and intermediate somewhat loose and slipping off the 
internodes, glabrous, smooth, striate, the lower more or less keeled ; 
bgules membranous, rounded, broad, up to 1 lin. long ; blades 
linear, gradually tapering to an acute point, 2-6 in. by 1J-3J lin., 
flat, glabrous, midrib slender, primary lateral nerves 3-4 on each 
side. Racemes 2-4, sessile, digitate, suberect or erect, very slender, 
2-5 in. long, pale green in flower ; rhachis flat, straight, | to almost 
J lin. wide, green, margins scabrid, midrib rather stout, whitish, 
very slightly convex and smooth on the back, more or less rounded 
and almost smooth or very sparingly and minutely pubescent on 
the face ; pedicels paired or (upwards always) solitary or towards 
the base in groups of 3 or 4, flexuous, terete with discoid tips, up to 
I lin. long, whitish, smooth or sometimes very sparingly or minutely 
asperulous or pubescent. Spikelets subimbricate in flower, elliptic- 
oblong, acute, J-l lin. long, pale green, quite glabrous. Lower 
glume delicately hyaline, very minute or almost 0 ; upper broad- 
oblong, obtuse or subobtuse, hyaline between the 3-5 percurrent 
green nerves, slightly shorter than the spikelet. Lower floret : valve 
elliptic, subobtuse, as long as the spikelet, thin, hyaline, nerves 7, 
raised, percurrent, parallel and equidistant or the 3 inner and the 2 
outer more approximate, usually anastomosing below the tips ; val- 
vule almost microscopic, square. Upper floret thinly chartaceous, 
