CXLII. GRAMINEA. A451 
distant, rigid, often hardening, 5-11-nerved, 2-dentate, with a 
dorsal knee-bent and basally-twisted awn. Grain channelled, 
pubescent, clothed with the persistent palea.—WNees, 1. c. p. 
351. 
Oats; A. sativa, A. orientalis, and A. fatua are more or less naturalized ; 
A, hirsuta, Roth, may be indigenous. 
60. TRICHOPTERYX, Nees. 
Spikelets 2-flowered, with a rudimentary glume, panicled. 
Outer glumes longer than the flowering, unequal, membra- 
nous, 3-nerved, the lower smaller. Flowering glume sessile ; 
the lower male, pointless, similar to the outer glume; the 
upper fertile, rather more rigid, 2-fid, the lobes bristle-tipped, 
with an interposed straightish, basally-twisted awn.—LVees, l. c. 
p. 839. 
T. Dregeana, the only species, is a slender grass from Natal. 
61. CHATOBROMUS, Nees. 
Spikelets 2- or several-flowered, in close, rigid panicles. 
Outer glumes longer than the flowering, many-nerved, acute. 
Flowering glumes faintly 9-nerved, mostly 2-fid, with entire, 
bristle-pomted segments, with an interposed, basally-twisted 
awn; lower sessile, unlike the others, or all of different sexes. 
—Nees, l.c. p. 340. 
Rigid grasses, resembling Danthonie.—5 Cape species. 
62. HIEROCHLOA, Gm. 
Spikelets in a diffuse or close panicle, 3-flowered. Outer 
glumes keeled, membranous, subequal. Flowering glumes 
keeled, the terminal hermaphrodite, diandrous, pointless; 2 
lower male (1 rarely neuter), triandrous,mostly awned; palea 2- 
keeled, the terminal flower 1-keeled. Ovary glabrous. Grain 
free, oblique, slightly compressed, glabrous, covered by the 
flowering glume and palea.—Wees, 1. ¢. p. 6. 
Sweet-scented grasses.—3 Cape species. 
SUBTRIBE 6. FESTUCACER. 
63. FINGERHUTHIA, Nees. 
Spikelets articulated below the lower glumes, with 1-2 
fertile flowering glumes and a pedicellate, neuter one, on 
minute pedicels, which are very closely set in spiral order 
round the rachis of an oval-oblong, dense spike, many empty 
glumes (abortive spikelets) occupying the base of the spike. 
2a 2 
