Digitaria. ]  GRAMINER (Stapf). 381 
il. PD. diagonalis (Stapf); perennial; culms tufted on a short 
premorse rhizome, ‘erect, rather firm, simple, up to more than 3 ft. 
long, glabrous or hairy ie the racemes, 1—3-noded, the ogee 
internode by far the longest ; leaves mare: crowded near the base 
long, obtuse or truncate; blades linear, tapering to a fine point, _ 
1-1 f 2-4 lin., flat or with involute margins, rigid or almost 
flaccid, scabrid, glabrous or softly hairy; racemes 5- to many, 
solitary or fascicled on a seabrid or hirsute angular common rhachis 
of variable length (the cone inflorescence 1-1 ft. long), slender, 
striet or flexuous, erect or more or less spreading, 2-5 in. long, villous 
at the base; thachis sa icrasein) wavy, very narrow, angular, 
angles rigidly ins internodes up to 12 lin. long; spikelets in 
fascicles of 3-6, oblong, obtuse to subacute, 1-12 lin. long, pedicels 
40; Lngl Hochge birgef. Trop. Afr. 117: Durand f oa 
Con nsp. Fl. Afr. v. 746. P. uniglume, Hochst. in Flora, 1841, i. 
Intell. 19 (name only) ; A. Rich. Tent. Fl. Abyss. ii. 370. P. densi- 
glume, Steud. l.c. 41 (by err 
Coast Reaion: Albany Div.; near Grahamstown, 1800-2000 ft., MacOwan ! 
EASTERN REGION: Pondoland ; between Umtata River and St. Johns River, 
* ri 
sae Central and East pee to the Nile region and Abyssinia. 
12. D. tricholenoides (Stapf); perennial; rhizome short, oblique, 
densely covered by the persistent imbricate bases of the old ‘shanties: 
culms erect, ee A 1-12 ft. long, glabrous ; leaves about 4 at the 
base, one from the only suprabasal node, reduc ed to a long almost 
bladeless sheath ; dheathe hairy, the uppermost narrow, silky bearded 
at the node, the lower widened ; ligules short, truncate ; blades linear 
to linear-lanceolate, tapering to an acute point, 2-34 ie, by 2-3 lin., 
,» glaucous, glabrous or hairy; racemes ce 6, subdigitate, 
erect, aun or slightly nodding, ‘debmaly silky, often purplish, 21-3 in. 
long, compound below; rhachis triquetrous, narrowly winged, 
scabrid, internodes 11-3 lin. long ; paseo 2-5-nate orin the lowest 
fascicles with the central 2-3 on a very short branchlet, oblong, 
acute, 2-22 lin. long (exclusive of the hairs), densely silky, unequally 
celled, longer pedicels up to 3 lin. long, filiform, flexuous, 
glabrous, tips subdiscoid ; lower glume delicately hyaline, whitish, 
