42 
CLYII. GKAMINEiE (Stapf). 
\Vossia. 
tail 4 to over 5 lin. long. Lower glume ovate-oblong, with a straight 
subulate tail, up to 1 in. long and 1 lin. wide at the base, smooth and 
shining on the back, spinulously scabrid along the keels and the edges 
of the tail, many-nerved if seen in transmitted light ; upper glume 
about 4 lin. long, ovate-oblong in outline, mucronulate, spinulously 
scabrid on the keel, otherwise glabrous, 5-9-nerved, the pair of 
lateral nerves submarginal, the inner or also the outer anastomosing 
with the middle nerve above. Lower floret 4 lin. long : valve 
oblong-lanceolate, minutely 2-dentate, 2-keeled, glabrous except the 
ciliolate tips, with a linear-oblong 2-nerved valvule. Upper floret 
similar to that of the lower, but the valve acute and 3-nerved. 
Anthers 2 lin. long. Stigmas over 1 lin. long. Pedicelled spikelets 
similar to the sessile, usually slightly smaller. — K. Schum. in Engl. 
Pfl. Ost-Afr. A. 67, C. 97. V. procera, Wall, et Griff, in Journ. Asiat. 
Soc. Bengal, v. 573 (1836), t. 23 ; Grant in Trans. Linn. Soc. xxix. 
175, t. 116 ; Hack, in DC. Monogr. Phan. vi. 270 ; Durand & Schinz, 
Consp. El. Afr. v. 701 ; Hook. f. El. Brit. Ind. vii. 151 ; Eranch. 
Contr. Elor. Congo Frany. 14 ; De Wild. & Durand, Contr. El. Congo, 
ii. 71, and Reliq. Dewevr. 253; Chevalier in Revue Cult. Col. vii. 
515 : Hope in Ann. Bot. xvi. (1902) 501 ; De Wild. Etud. FI. Bas- 
et Moyen-Congo, i. 94 ; Th. & Hel. Durand, Syll. El. Congo, 622. 
Ischcemum cuspidatum, Roxb. FI. Ind. i. 324 ; Kunth, Enum. PI. i. 
516 ; Griff. Notul. iii. 70. Ischcemum ensiforme, Herb. Ham. ex 
Wall. Cat. n. 8878. 
Upper Guinea. Northern Nigeria : Sokoto Province, Dalziel, 508 ! Kata- 
gum District ; in marshes, Dalziel, 291 ! 
North Central. Bagirmi : Fort Lamy, Chevalier, 10275 ! 10305 ! Upper 
Ubangi River, Viancin; Lake Lere, Macleod, 114! 115! Tuburi marshes, 
Macleod ! 
Nile Land. Kordofan : Takari, Pfund, 394 ! Birket-Rahad, Pfund, 581 ! 
Bahr el Gebel, Schweinfurth, Ser. Ill, 135 ! Moqrem el Bohur, Schweinfurth, 
Ser. Ill, 138 ! Uganda : White Nile, Speke & Grant ! 
Lower Guinea. Gaboon : Lake Kakimba, between Setti Cama and Fernan 
Vaz, Dybowski, 21, Lecomte ; Belgian Congo : Stanley Pool District ; Bolobo, 
Dewevre ; Kimuenza, Gillet. 
South Central. Belgian Congo : between Mokeno and Mongo, Thollon, 229 ; 
Lower Kassai District, Descamps. 
Mozambique Distr. Nyasaland : Nyika Plateau ; Rukuru River, 4000 ft., 
McClounie, 9 ! Elephant Marsh, Kirk ! Portuguese East Africa : Luabo 
River, Kirk ! 
Vossia cuspidata is one of the principal constituents of the 4 sadd 5 of the Nile 
and its tributaries and other rivers of Tropical Africa. 
9. URELYTRUM, Hack, in Engl. u. Prantl, Nat. Pflanzenfam. ii. 
2. pp. 22, 25. 
Spikelets 2-nate, those of each pair different in shape and sex, 
one sessile, the other pedicelled, on the very fragile rhachis 
of solitary, paired or racemed subcylindric spike-like racemes, the 
sessile deciduous with the adjacent joint of the rhachis and pedicel ; 
