SYNOPSIS OF GENERA. Xui 



Order II. DIGTNIA. Pistils 2. 



ANTHOXAXTHUM. CaL glume of 2 valves, 1-flowered. Cor. glume of 

 2 valves, awned. Seed 1. Graminece, p. 317. 



Class III. TRIANDRIA. Stamens 3. 



Order I. MONOGYNIA. Pistil 1. 



* Flowers superior. 



VALERIANA. Cor. 5-cleft, protuberant at the base. Seed 1, with a 

 feathery radiating crown. Valerianece, p. 140. 



FEDIA. Cor. 5 cleft, protuberant at the base. Caps, crowned with tlie 

 toothed calyx, without valves, of 1 3 fertile cells. Seeds solitary. Vale- 

 rianece, p. 139. 



CROCUS. Cor. in 6 deep equal segments; tube longer than the limb. 

 Stigmas folded. Iridecz, p. 274. 



IRIS. Cor. in 6 deep unequal segments, alternately reflexed. Stigmas 

 2-lipped, like petals. Iridea, p. 273. 



* * Fl. inferior } chaffy. Seed 1. 



SCHCENUS. Cor. none. Spike of very few flowers. Glumes 2-ranked, 

 with many smaller, empty, external ones. Style simple at the base, deciduous. 

 Cyperacece, p. 320. 



RHYNCHOSPORA. Cor. none. Spike of very few flowers. Glumes imbri- 

 cated all round, with many smaller, empty, external ones. Seed beaked with 

 the dilated, hardened, permanent base of the style. Cyperacece, p. 319. 



SCIRPUS. Cor. none. Glumes imbricated all round, uniform, "concave, 

 expanded. Style simple at the base, deciduous. Cyperacece, p. 322. 



BLYSMUS. See p. 319. 



ELEOCHARIS. Cor. none. Glumes imbricated all round, uniform, ex- 

 panded. Seed crowned and articulated with the dilated hardened base of the 

 style. Cyperacece, p. 320. 



ERIOPHORTJM. Cor. none. Glumes imbricated all round, uniform, ex- 

 panded. Seed subtended by numerous very long hairs. Cyperacece, p. 323. 



NARDUS. Cor. of 2 valves. Calyx none. Graminece, p. 318. 

 (Some Junci ; see in Cl. vi. 



Order II. DIGYNIA. Pistils 2. 



True Grasses. Gramineae. 



* Flowers dispersed. CaL of 2 or 3 valves, with a solitary floret. 



ALOPECURUS. CaL of 2 valves. Cor. of 1 valve ; simple at the summit ; 

 awned at the base. Styles combined, p. 295. 



PHAI.ARIS. Cal. of 2 close, parallel valves, concealing the double corolla 

 of 3 or 4 valves ; 2 innermost downy, subsequently hardened, investing the 

 seed. p. 295. 



AMMOPHILA. Panicle spiked. CaL of 2 nearly equal, keeled valves, 

 longer than the corolla, surrounded at the base by a tuft of hairs, p. 296. 



PHLETJM. Cal. of 2 close, parallel, pointed valves, concealing the cor. of 

 2 awnless valves. Seed loose, p. 296. 



MILIUM. Cal. of 2 tumid, close valves, enclosing the cor. of 2 valves. 

 Seed coated with the hardened corolla, p. 297. 



