44.2 CXLII. GRAMINED. 
spikelets occasionally prolonged into a flattened hairy-margined 
ensiform point, 2-38 inches long. (In the Cape species this is 
only the case in the pedicellate spikelet.) Inner glume boat- 
keeled, not quite as thick as the outer. Flowering glume and 
palea very membranous and unusually large. Grain free, 
much shorter than the palea.— Wall. et Griff. in Journ. As. 
Soe. Bengal. v. (1836) p. 572; Griff: Not. p. 71; Endl. Gen. 
Pl. p. 1354. 
Tallish grasses, with, in the 2 Cape species, solitary spikes more than 6 
inches long. One (Rottbellia hordeoides, Munro, mss.) found on the Mori 
river by Burke, the other (Burchell, n. 2200) found by him at Litakun. 
24, HETEROPOGON, Pers. 
Spikelets in pairs along the slender rachis of simple spikes ; 
one sessile, cylindrical, female ; the other male, shortly pedi- 
celled. Lowest glume of the fertile spikelet rigid, convolute, 
truncate, the next keeled, the third very thin and membranous. 
Flowering glume reduced to a long, thick, hairy, twisted and 
flexuous awn. Male spikelets lanceolate, awnless. Grain 
free, enclosed in the glumes.—Wees, l.c. p. 100; Benth. Fl. - 
Hongk. p. 424. 
3 Cape species, with solitary or geminate spikes, narrow leaves and 
slender culms ; /. contortus is common.—The lowest spikelets of the spike 
are frequently all male. 
25. ANDROPOGON, Linn. 
Spikelets in pairs along the jointed rachis of solitary, gemi- 
nate, tufted or panicled spikes; one sessile, fertile; the other 
shortly pedicelled, male or reduced to a glume. Outer glume 
of fertile spikelet rigid, with 2 lateral nerves stronger, the 
second keeled, the third very thin, transparent. Flowering 
glume very small and delicate, ending in or reduced to a long 
twisted awn. Grain free.—Lees, 1.c. p. 103; Benth. l.c. p. 
422; Lepeocercis, Nees, l.c. p. 97. 
Rigid, rather coarse grasses, very various in habit; the spikes in some 
nude, in others enclosed in persistent, spathe-like sheathes.—16 Cape 
species. 
an the subgenus Schizachyriwm the spikes are solitary, slender, and al- 
most cylindrical. The pedicelled spikelet rudimentary on a flattened 
pedicel. 
In the subgenus Lepeocercis the spikelets are quadrifarious, 2 rows of 
male on one side, and 2 rows of females on the other side of the flattened 
rachis. All the lower glumes are very blunt, and often toothed at the apex. 
26. SORGHUM, Pers. 
Spikelets at the ends of the twigs of a branching panicle, 
either fertile, male, or neuter, dissimilar. Outer glumes 2; in 
