388 
97. geamii«t:^. 
subsessile on opposite sides of a channeled and toothed 
jointed rachis. Uppermost fl. often barren. Style very 
short. (Lateral spikelets often stalked in Hordeum.) 
t Spikelets very shojihj stalked or subsessile. 
45. Brackypodium. Spikelets solitary. Gl. opposite, un- 
equal, many-flowered, theu' edo;es towardsthe rachis. Upper 
pale coarsely fringed on the ribs. — The imequal gl. distm- 
guish this from Tritictan. 
tt Spikelets quite sessile. 
4- Glumes 2. 
46. Tbiticum. Spikelets solitary. Gl. opposite, nearly 
equal, many-flowered, their edges towards the rachis. Inner 
pale minutely ciliate on the ribs. 
47. Elymus. Spikelets 2 or 3 together. Gl. 2, both on the 
same side of the spikelet, without awns or bristks, with 2 or 
more perfect flowers. 
48. Hordeum. Spikelets in threes, often partially barren. 
Gl. 2, ending in long bristles ; 1 perfect fiower and a stalk- 
like rudiment. 
49. Lepturus. Spikelets solitary, imbedded alternately on 
opposite sides of the rachis. Gl. 1 — 2, both on the same 
side of the spikelet, cartUaginous, covering the 1 fl. and 
superior rudiment. Pales scarious. Stigmas feathery. 
4.4. Glume solitary, bractlike, or the upper very small. 
50. LoLiUM. Spikelets solitary, placed edgewise on the rachis. 
Gl. solitary, or that next the rachis very small, with 3 or 
more flowers. 
Suborder I. Clisantheee. Tribe I. Panicece. 
1. Digita'ria Scop. 
[D. sanguindlis (Scop.) ; 1. and sheaths hairy, fl. oblong-lan- 
ceolate glabrous with downy margins (?). — E.B. 849. P. 70. — 
St. ascending, a foot long. — Not a native. A. VIII.] E 
1. D. humifusa (Pers.); 1. and sheaths glabrous, fl. ovate 
downy with glabrous veins. — E. B. S. 2613. P. 71. — St. mostly 
procumbent, 4 — 8 in. long. Spikes usually 3 or 4, springing 
Irom nearly the same point. Spikelets in pairs, one on a longer 
stalli than the other. — Sandy fields, rare. A. Wl. YTU.. K 
