452 GRAMINEX eae [ Trichopteryz. 
abe : eee glume ovate, subacute or abhi, 12 —]i Tin. long, g clalannts, 
thin, upper lanceolate acuminate, acute, 2-2} lin. long: lower floret at 
valve like the upper glume, slightly longer ; pale linear-oblong, 1; 
in. long; stamens 2, anthers + lin. long; 2 floret : valve oblong, 
1 lin. long, deeply bifid, lobes produeed into fine bristles 14 lin. long, 
glabrous except a long beard on each side at the middle, sub-7-nerved ; 
callus minute, obtuse, minutely bearded ; awn very er 3 lin. long, 
column very short ; pale 12 lin. long ; stamens 2. ees, Fl. Afr. 
Austr. 339. Danthonia oe = Syn. Pl. ‘Ohne i, 244; 
Durand & Schinz, Consp. Flor. Afr. v 
KaLanaRI REGION: Transvaal, alee Distr., Spitzkop Goldmine, Wilms, 
! 
t eae ERN ReGion: Natal; common on wet banks, Buchanan, 291! between 
Umtentu River and Uwaimkuta River, 500 ft., Drege ! ! Zululand; in a swamp at 
Entumeni, Wood, 3 
Also in the Shire Ec 
XXV. TRISTACHYA, Nees. 
Spikelets 5 lin. to 2 in. ong, lanceolate to linear, sessile or shortly 
pedicelled in clusters of 3 a the tips of the branches of a raceme OF 
panicle; rhachilla disarticulating between the valves and less readily 
or imperfectly below them, glabrous, not produced beyond the ae 
flo 
shorter than the others; upper valve convolute, membranous or ultt- 
mately contilaginons, bifid, 7- (rarely 5-) nerved, awned from between 
8 lobes ; awn need, twisted below.  Pales membranous, hyaline, 
kecled: Lodi cites 2, cuneate, very fleshy. Stamens 3. Ovar 
dbowidid to oblong, glabrous or the top hairy, rudimentary in the 3 
floret ; stigmas plumose, long, laterally exserted. Grain obovoid to 
linear-oblong, grooved, tightly embraced by the valve and pale, free; 
hi oe lin Sic ; embryo large; albumen very hard. 
nnial, gene coarse grasses, growin paar in cepaaaea tufts ; ae 
reid Tiga : Tine ‘ot hairs 3 triplets of spikelets large and few race 
sm merous in scantily branched penile, Sane Toe oaaeous 
rene the. sani plhees cles 
Species 11-12, in Africa, Arabia and Beluchistan, and in piano America. : 
Flames glabro’ (1) Behman2- 
Glume oe or iad hair 
Glumes equal, about £10 lin. long, lower with a submar- 
ginal row of large black bristle-bearing glands on each ete 
side, otherwise glabrous, upper pubescent (2) biseriata- 
Glumes nnequal, ae! and 14-18 on long respectively 
aestes preating a bese ot i ve sl me glands a 
50 8s in airs On: a on . 
the ienestita uate a : e * party oa Bi (3) leucothriz 
Se Sata sc 
