330 SUMMEll FLOWERS. 



(297) Luzula. Wood -rush. 



L. sylvatica: stems 1^-2 feet or more; leaves linear-lan- 

 ceolate, hairy ; flowers in large, loose, compound panicles, the 

 perianth-segments broad, bristle-pointed, equalUng the cap- 

 sule. — Woods, n. May, June. 



L. spicata: stems 3-12 inches high; leaves short, hairy; 

 flowers small, in dense clusters, all sessile, forming an ovoid or 

 oblong terminal spike, more or less drooping. — Lofty moun- 

 tains. Fl. July. [See also p. 73.] 



(298) Carex. Sedge. 



* Spikelets several, the terminal one coinposed of male and fe- 

 male flowers intermixed. 



C. arenaria: creeping; stems 1-1 i foot high, leafy at the 

 base; spikelets large, ovoid, simple, sessile, crowded 8-10 to- 

 gether in a terminal spike. — Maritime sands. Fl. June, July. 



** Spikelets several, one or more terminal ones wholly male. 

 f Styles hifid or two-cleft. 



C. caespitosa : stem 1-3 feet high, densely tufted ; leaves 

 narrow ; spikelets 3-6, each ^-1 \ inch long, the terminal 

 one and the upper portion or whole of the next male, the re- 

 mainder female, the lowest usually shortly stalked, with one or 

 two of the outer bracts leafy ; glumes dark-brown or black, 

 often with a green midrib. — Pastures, meadows, and marshes. 

 Fl. May to July. Mr. Benthara includes as varieties : — 



C. rigida : a dwarf alpine form, six inches high, with short, 

 flat, and rigid leaves. — Wet mountainous places. 



C. stricta : stems about two feet high, glaucous with nar- 

 row leaves, rather long spikelets, the fruits arranged in 8-9 

 rows. — Marshes. 



