76 Bulletin V. 



Fig. 28. Lolium perennc. — Perennial Rye-grass. Figure showing 

 the habit of growth. At the top of the figure is a portion of one of 

 the narrow spikes, drawn on a larger scale. Here the single 

 spikelets, placed with one edge against the main rachis, are sessile, 

 and hence the inflorescence is a true spike. 



Fig. 29. Lolium perenyie, L. — Rye-grass. A, upper portion of the 

 inflorescence, which is a true spike. The spikelets stand with one 

 of their edges next the rachis. This is shown more clearly in B^ 

 which illustrates a portion of the rachis and a single spikelet with 

 two of the lower florets expanded. ^, palet. A', fruit. 



Fig. 30. Glyceria fluitans, R. Br. — Manna-grass. A, a portion of 

 the paniculate inflorescence. C, one of the empty glumes, which is 

 strongly seven-nerved. E, palet, strongly two-keeled and bifid at 

 apex. G, lodicules, thick and truncate. A", grain, the small 

 embryo shown near the base. 



Fig. 31. Bromus mollis, L. — Soft Brome-grass. A, a portion of 

 the inflorescence, which is a panicle. DxE, a floret seen from 

 behind. The flowering glume is notched at the apex, and awned. 

 F, the flower; two small lodicules at the base in front, three 

 stamens with short two-celled anthers borne on slender filaments; 

 two plumose sessile stigmas inserted or attached on the anterior 

 side below the summit of the hairy-topped ovary. A', grain seen 

 from in front; the small oblong scar at the base denotes the 

 position of the embryo. A'/, grain seen from behind: the dark 

 central line is the narrow or linear hilum. 



