Deschampsia.| GRAMINACEAE. 519 
short, terminal, — misting ex eer Trin. — Avena filiformis, Forst. 
Prod. no. 46, — rps s filif. S — A. Forsteri, R. & L. — Steud. 
Synops. Pl. Glum. I, — A. ceca R. Br, — A. retrofracta, Willd. 
Molokai! Lanai! Maui! — Occurs also on Easter Island, New Zealand, and in 
Australia. 
2. D. Hillebrandi, Munro, in liter. — Tufted. Stems 12—15’, stiff, erect, 
terete, with 9—10 nodes, the lower leaves distichous and only the upper- 
most one near As Agni shorter than its sheath. Leaves coriaceous, 
convolute, erect, 7—3/ long, 2 broad when expanded, glabrous, smooth 
throughout, no a subulate point. Ligule short ovoid or truncate. nicle 
4—5’‘ long, the rays suberect, quite smooth, 3—5 in the lowest cee the 
longest 21/2‘, Spikelets on pedicels of their own length or more, 21/2’ 
glabrous, 1-flowered, the sessile floret pubescent at the base, with a short- 
haired axial prolongation. uter glumes subequal, strongly 1-nerved, 
mucronate, with almost smooth keels. Flowering glume little shorter, 5-nerv 
at the base, navicular, keeled, acute, entire, at last splitting into 4 setiform 
teeth, the long and stout dorsal awn rising from its middle, 5—6’’ long 
and strongly declinate. Palea little shorter, sharply bifid, smooth. Stamens 
short, with oblong anthers. Stigmas terminal, subsessile, thinly plumose. 
Lodicules ovate 
Top of Mt. Eeka, Maui! — Near D. montana, Benth., from Australia. 
3. D. expansa, Munro, in Seem. Journ. Bot. 1869, p. 178 (name only). — 
of panicle 3—4‘ long, branching from the base, scabrous. Spikelets hase 
Sessile, 2—21/2 long, 1-flowered, with a searcely perceptible prolongation 
of the axis. Em ty glumes subequal, lanceolate-acute, 1-nerved, carinate, 
the keel scabrous. Floret less than 2“, surrounded at the base with many 
stiff hairs which exceed it in length, otherwise glabrous; its glume ovate, 
with an entire (?) apex, awned below the apex, the awn straight and 
about as long as the glume; the palea as long as its glume, narrow 
«North bank of the crater of Haleakala (U.S. E. Exp.). Very near D. _—. Munro (Calama- 
with the floret) 
gr ostis ebiibebacens Griseb. A few rays with “old spikelets (only 0 
y furnished fr. 8. aioe from the Gray herbarium at Asien in ce, Mass., enable 
me to give the above partial description 
Susrripe VII. AVENACEAE. 
Spikelets pedicellate, 2- or few flowered. Two empty glumes large, 
most enclosing the florets; the flowering glumes often with a bent or 
_ twisted awn. Stigmas subecasilé, protruding near the base of the floret. 
22. DESCHAMPSIA, Beauv. 
Spikelets in open panicles, continuous with their pedicels, 2- flowered, 
the axis articulate, hairy, and prolonged beyond the secon nd floret; both 
florets hansiabhirodine and shorter than the outer glumes, the upper pe- 
