Urochloa. | Graminez. ie 
4g. UROCHLOA Beauv. 
Annual or perennial grasses; ligule reduced to a hairy 
ridge; spikelets arranged in panicles of secund spikes; gl. I 
small, abaxial; gl. II longer, 5-7-veined; gl. III similar 
to gl. II; gl. 1V obtuse and mucronate at apex; palea 
crustaceous; grain tightly enclosed.—Sp. 18; mostly in the 
Old World. 
Glume I 5-veined : 
Spikelets 75-3 in. . : > : : . I. U. SETIGERA. 
Spikelets {-3 in. . ; : : , : . 2. U. HELopus: 
Glume I veinless ; ; ; : : . 3. U. REPTANS. 
Page 141.—For Panicum setigerum Retz. read: 
1. Urochloa setigera Stapf, in Fl. Trop. Afr. IX, p. 598 (1917). 
Panicum setigerum Retz. Obs. IV, p. 15 (1786). 
Page 142—For Panicum javanicum Poir. read: 
2; Urochloa Helopus Stapf, in Fl. Trop. Afr. IX, p. 595 (1917). 
Panicum Helopus Trin. ex Spreng. N. Entdeck. II, p. 84 (1821). 
P. javanicum Hk. f. in Trim. Fl. Ceyl. V, p. 142 (1900) non Poir. 
Page 138.—For Panicum prostratum Lamk. read: 
3. Urochloa reptans Stapf, in Fl. Trop. Afr. XI, p. 601 (1917). 
Panicum reptans Linn. Syst. Nat., ed. 10, II, p. 870 (1759). P. pro- 
stratum Lamk. Ill. 1, p. 171 (1791). 
Native of Tropical America (Hitchcock and Chase Contr. U.S. Nat. 
Herb. XVII, p. 467), but this seems unlikely, as the other species are 
found in the Old World. 
4h. HEMIGYMNIA Siapf. 
Annual or perennial grasses; ligule represented by a ciliate 
ridge; panicle of continuous or interrupted spikes; spikelets 
ovate-oblong, glabrous; gl. I & II subequal; gl. I 3-5-veined, 
} to nearly as long as el. III; gl. II, ovate-lanceolate, 3-7- 
veined, acuminate; gl. III, 5-9-veined, ovate oblong; gl. IV, 
oblong, aristulate or not; palea thinly coriaceous, minutely 
granulate, obscurely 5-veined.—Sp. 3; Tropical Asia and 
Africa. 
Spikes not interrupted; inflorescence panicled . 1. H. JAVANica. 
Spikes interrupted : 
Inflorescence panicled. : ' : . 2. H. ARNOTTIANA. 
Inflcrescence spiciform . ‘ . : . 3. H. CANALICULATA. 
Page 137.—For Panicum ambiguum Trim. read: 
1. Hemigymnia javanica (Poir.). Urochloa javanica Stapf in 
Fl. Trop. Afr. IX, p. 597 (1917). Panicum javanicum Poir. in Encycl. 
Suppl. IV, p. 274 (1816) non Hk. f. Panicum ambiguum Trin. Gen. 
Part V. 
