TABULA 3069. 
DIGITARIA IBURUA, Stapf 
GRAMINEAE. Tribus PANICEAE. 
D. Iburua, Stapf in Kew Bull. 1915, p. 382, figs. 1-10; affinis 
D. ibis: ried sed spiculis majoribus glaberrimis densissime 
imbricatis distincta 
Gramen annuum, ultra 0-5 m. altum. Culmi glabri, erecti, simplices, 
4-5-nodi, internodiis praeter summa vaginis usi oli 
vaginae arctae, striatae, glabrae, laeves, inferiores superne carinatae ; 
ligulae membranaceae, rotundatae, 2-3 mm. longae ; laminae lineares, 
ad 2-5 mm. longi, apice minute barbatuli, vix incrassati. Spiculae 
arcte imbricatae, elliptico-lanceolatae, acutae, 2 mm. longae, pallide 
virides, glaberrimae, facie abaxiali applanatae. Glumae hyalinae, 
inferior minutissima vel suppressa, superior ovata, obtusa, 0-75-1 mm 
longa, tenuiter 3-nervis. Valva anthoecii ee sterilis tenuiter 
membranacea , Spiculae seule ub-7-nervis, nervis oe 
3 parallelis approximatis siren interakbbu s ad flex per 
paria approximatis, cum valvula fere microscopica lata stagnalis 
truncata; valva anthoecii superioris fertilis cengereee gs haat 
inferiori aequilonga, laevis, obscure nervosa, valvulam similem 
bus late amplectens. Stamina 3; : meagre 1 mm. ies ngae Stigmata 
sub apice breviter exserta. Caryopsis ellipsoidea, a dorso subcom- 
pressa, 1-5-1-75 mm. longa, alba, eiiiaide foveolata, valva valvula- 
ue brunnescentibus paullo induratis arcte inclusa; scutellum late 
ellipticum, vix ad mediam caryopsin attingens. 
West Tropicat Arrica: Nigeria; Hausa States, sown as a field 
crop at Zaria, Lamb, 54. 
An account of the economic uses and value of this grass has been 
published in the Kew Bulletin for 1915, pp. 381-383.—O. Srapr 
e with the spikelets removed; 3, spikelet, 
Pikes ca Pe paride” tahicgeeant 5, upper + petie e; 6, valve of lower cee 
floret ; 7, upper floret, face view with valvule of lower floret i be ont; 8, the same 
seen from behind; 9, fruiting spikelet; 10, grain. All enlarged. 
