800 MR. J. G. BAKER ON THE 
ANDROPOGON ($ GYMNANDROPOGON) TRICHOZYGUS, n. sp. 
Perennis, dense czespitosus, caulibus strictis elongatis, foliis paucis elon- 
gatis rigidulis lineari-setaceis, panicule ramis 2-3 subdigitatis elongatis 
pilosis, spiculis geminis basi pilorum verticillo przditis, una sessili aris- 
tata, altera sterili pedicellata haud aristata, glumis sterilibus lanceolatis 
rigidulis margine sursum denticulatis. 
A densely tufted perennial, with stiffly erect slender glabrous 
stems 2-3 ft. long, bearing several leaves with long close sheaths 
and a long narrow linear strongly ribbed almost triquetrous gla- 
brous blade. Panicle of two or three contiguous ascending 
branches 2-3 in. long; spikelets in pairs with a ring of hairs at 
the base, one fertile, sessile, with a geniculate awn 1 in.long, the 
other pedicellate, sterile and awnless. Outer glumes coriaceous 
in texture, lanceolate-navicular, glabrous, purplish, 4 in. long, 
not distinctly ribbed except the keel, the margins distinctly 
denticulate upwards.—Central Madagascar, Baron 1807! Allied 
to the Abyssinian A. brachyatherum, Hochst., and Tropical- 
African A. Mannii, Hook. fil. 
STIPA MADAGASCARIENSIS, N. sp. 
Perennis, dense czspitosa, glabra, foliis elongatis lineari-setaceis, pani- 
cule laxissim: ramis eapillaribus aseendentibus, spiculis paucis sessilibus, 
glumis sterilibus lanceolatis quam flos brevioribus pilis hispidis ascenden- 
tibus basi bulbosis instructis, gluma florifera glabra acuminata, palea arista 
sesquipollicari preedita. 
A dense cespitose perennial, with stems about a foot long. 
Leaves setaceous, glabrous, moderately firm in texture, the lower 
ones with a lamina about half a foot long; stem-leaves 2-3, the 
upper with a tight sheath 3-4 in. long, longer than its lamina. 
Panicle erect, very lax, 3-4 in. long, the capillary ascending 
branches bearing few spikelets each, the lateral ones sessile. 
Sterile glumes brownish, lanceolate-acuminate, clothed with two 
rows of ascending bristly whitish hairs with a black bulbous base, 
4-3 in. long. Flowering glume lanceolate, acuminate, glabrous, 
3 in. long. Pale much smaller, produced into an awn 12 in. long, 
bent at the middle and twisted in the lower half.—Central Ma- 
dagascar, Baron 2022! Allied to S. JVeesiana, Trin., and S. emi- 
nens, Cav. Adds this well-known and widely spread genus to the 
flora of the island. 
LOoPHATHERUM GEMINATUM, n. sp. 
L. caule gracillimo elongato ramoso, vaginis elongatis margine dense 
