76 SPRING FLOWERS. 



Xt Bracts not sheathing ; heak of the fruit terete. 



C. ampullacea : stem 1-2 feet high ; barren spikes several ; 

 fertile ones 2-4, remote, cylindrical, erect, stalked ; fruit in- 

 flated, abruptly contracted into a long beak. — Wet bogs. Fl. 

 May, June. 



C. vesicaria : stem 2 feet high ; barren and fertile spikes 

 nearly as in the last, but rather shorter; fruit inflated, gra- 

 dually tapering into a short beak. — Wet bogs. Fl. May. 



C. riparia : stem 3 feet high ; barren spikes several ; fertile 

 two or three, rather distant, cylindrical, 2-3 inches long; 

 fruit much flattened or convex on both sides narrowed into a 

 short broad beak. — Watery places. Fl. April, May. 



(114) Sesleria. Moor-grass. 



S. coerulea : dwarf, densely tufted ; stem 6-12 inches high, 

 supporting a solitary ovate-oblong spike-like panicle, ^-f inch 

 long, of a bluish-grey. — Alpine limestone rocks. Fl. April to 

 June. 



(115) Anthoxanthum. Vernal-grass. 



A. odoratum : stems 1-2 feet high, tufted ; spike-like pa- 

 nicle, li-2 inches long; herbage fragrant when withering 

 having the well-known smell of new hay, which is attributable 

 to this common pasture grass. — Sweet Vernal Grass. — Mea- 

 dows and pastures. Fl. May, June. 



(116) Chamagrostis. 



C. minima : annual, tufted, 2-3 inches high ; spikelets 

 small, purplish, almost sessile, in a simple slender spike, ^ inch 

 long. — Sandy pastures on the coast. Fl. March, April. 



