524 GRAMINACEAE, [Eleusine. 
below, pale glaucous, plane, 5—8‘ long, 2—3” broad, somewhat obtuse, 
mucronate, sparingly ciliate with long hairs on the upper face but glabrous 
with age, rough below and on the margins, jointed with the sharply keeled 
sheath. Ligule short ciliate. epee 12—25 in a loose fascicle or contracted 
— a silvery, slende 4‘ long, with a filiform rhachis. Spikelets 
mbricate in 2 rows, shortly POF i with a ring of hairlets at the base, 
baa i I “long, with 1 hermaphrodite floret and 1 minute awned glume on 
a long pedicel beyond. Outer glumes stiff, linear, pointed, 1-nerved, with 
scabrous keel, the lower '/2 the length of the floret, the second equalling 
it. Flowering glume thin chartaceous, lanceolate-obtuse, with 1 median and 
2 marginal nerves, the margins (not the mT ciliolate near the apex, the 
scabrous awn of more than twice the length of the glume rising from 
below the apex. Palea narrow, esertoig ane along the keels. — 
Griseb. Fl. W. Ind. p. 539. — Agrostis radiata, L 
lis of Maunalua (Koko Head), Oahu! Kapapala, Hawaii! The species is a 
fa hi 
native he tropical America from Cuba to Brazil, and occurs also in 8. Africa from the 
Cape t tal. 
27. ELEUSINE, Gaertn. 
Spikelets several-flowered, flat, awnless, imbricate in 2 rows along one 
side of the digitate or scattered branches of a simple panicle. Glumes 
spreading, keeled and ts obit thin but cage the 2 outer oe ones 
usually shorter, unequal. Flowering glumes obtu the terminal one 
empty or uation tary. Palea “folded a fame eas short, 
distinct. Grain transversely wrinkled, enclosed in a loose pericarp. 
A small, widely spread tropical genus. 
1. E. Indica, Gaertn. — Kunth, Enum. Pl. I, 272. — A coarse tufted grass, 
the stiff erect stems branching, 1'/2—3 ft. high, compressed, naked above, 
glabro Leaves distichous below, glabrous, flat, 8—10‘ long and 3—4" 
broad, aie aricate, jointed with the sheaths, which are keeled and ciliate 
at the mouths. Ligule short truncate, ciliate. Spikes 5—7, digitate, with 
Seale a solitary one an inch or two lower down, each 3—4‘ long an 
rather stout, with a smooth triquetrous habia: Spikelets imbricate, 
ovate, cians. about 3“ long, 4—8-flowered. Glumes thick, all boat- -shaped 
and somewhat obtuse, with scabrous keels; the lower empty one'/s the length 
of the spikelet, 1-nerved, the second Ve th e length of the spikelet and 
3-nerved, the greenish nerves closely approximate. Flowering glumes 
broad and apparently 1-nerved, the lateral nerves coalescing with the median. 
Paleae '/3 shorter than their glumes. Filaments long; anthers yellowish. 
Pericarp persistent. 
_ Very common near cultivated grounds in the lower regions. Spread over most tropical 
countries, including the southern P; islands. 
