CL. Ill,] TRIANDRIA DIGYNIA. 85 



t J 



34. SPARTI'NA. CORD-GRASS. 



Calyx one-flowered, of two unequal, lance-shaped, keeled, 

 compressed chaff-scales ; the inner cleft at the end. Corolla of 

 two lance-shaped, bluntish, compressed, awnless husks, the 

 inner rather longer. Nectaries none. Filaments hair-like, not 

 so long as the corolla ; anthers erect, linear, cleft at the base. 

 Germen elliptical. Styles united for a great part of their 

 length, separate at the top ; stigmas feathery, slender. Seed 

 oblong, compressed, loose, covered by the unaltered husk. 

 Named from its resemblance to Lygeum Spartum. 50. 



1. S. stricta. Twin-spiked Cord-grass. Spikes two or three ; 

 flowers very hairy ; leaves shorter than the spikes, tapering at the 



base, and jointed upon the sheath. Root creeping : the whole 



plant remarkably stiff : straw a foot or more in height : spikes 

 erect, straight, close together. Perennial : flowers in August : 

 grows in muddy salt marshes on the east and south-east coasts of 

 England : rare. Eng. Bot. vol. vi. pi. 389. Eng. Fl. vol. i. p. 136. 



168. 



2. S. alternifolia. Many -spiked Cord-grass. Spikes numerous, 

 flowers glabrous ; leaves equal to or longer than the spikes, dilated 



at the base and continuous with the sheath. Much taller than 



the preceding. Perennial : flowers in August : grows in muddy 

 salt marshes : extremely rare. Discovered in 1836 by Dr. Brom ; 

 field, at Itchen Ferry, Southampton. Comp. to Bot. Mag. vol. ii. 

 p. 254. Brit. Fl. 4th ed. p. 53. 169. 



35. CYNOSU'RUS. DOG'S-TAIL-GRASS. 

 Spikelets in pairs : the outer consisting of numerous two- 

 vowed, lance-shaped, pointed chaff-scales, without corolla or 

 other part of fructification, and resembling a pectinated bractea ; 

 the inner of several flowers. Calyx of two equal, lance -shaped, 

 one-ribbed, concave, keeled, taper-pointed, awned chaff-scales, 

 containing two or three perfect flowers, occasionally with rudi- 

 ments of more. Corolla of two unequal, lance-shaped husks ; 

 the outer concave, keeled, with a straight awn at the summit ; 

 the inner two-ribbed, inflected at the edges, cleft at the point, 

 awnless. Nectary of two acute scales. Filaments hair-like, 

 shorter than the corolla; anthers linear, cleft at both ends. 

 Germen elliptical. Style very short, distinct ; stigmas long, 

 feathery. Seed loose, oblong, invested by the unaltered husks. 

 Named from kyon, a dog, and oura, a tail. 51. 



1. C. cristdtus. Crested Dog's-tail-grass. Spike simple, linear ; 



neutral spikelet awnless. Straws about a foot high, stiff, 



smooth : spike erect, linear, with a waved rough stalk. This grass 

 is excellently adapted for making straw-plait, and has been em- 

 ployed for that purpose. Cattle hardly ever eat it. Perennial : 

 flowers in July : grows in meadows and pastures, abundantly. 

 Eng. Bot. vol. v. pi. 316. Eng. Fl. vol. i. p. 137. 170. 



2. C. echindtus. Rough Dog's-tail-grass. Spike compound, egg- 

 shaped ; neutral spikelet awned. Straws from ten to twenty 



inches high : spike dense, bristly with the long rough awns of the 

 perfect flowers. Perennial : flowers in July : grows on sandy 

 ground, in the south of England, and Jersey : rare. Eng. Bot. 

 vol. xix, pi, 1333. Eng. Fl. vol. i. p. 138. 171. 



H2 



