54° 



CYPERACE^E 



radical, flat, shorter, revolute ; staminate spikelet terminal, 6 lines 

 long ; pistillate spikelets close together, 2 or 3, shortly stalked, 

 spreading in a finger-like manner ; flowers lax ; bracts brown and 

 sheathing ; styles 3-cleft ; fruit obovoid, and minutely downy. — 

 Woods on limestone ; rare. — Fl. April, May. Perennial. 



41. C. ornithdpoda (Bird's-foot Sedge), a closely allied form 

 with broader bracts and longer fruit, occurs in Derbyshire and 



Yorkshire. — Fl. May — July. 



Perennial. 



42. C. humilis (Dwarf Silvery 

 Sedge). — A creeping, tufted 

 species ; stems 1 — 5 in. high ; 

 leaves longer, stiff, involute, 

 curved ; staminate- spikelet termi- 

 nal, about 9 lines long ; pistillate 

 ones 3 — 5, much smaller, 

 stalked, placed at intervals on 

 the stem, scarcely protruding 

 from the sheath of silvery mem- 

 branous bracts; glumes with 

 membranous edges ; styles long, 

 3-cleft ; fruit ovoid, obtuse, rib- 

 bed, slightly downy .—Limestone 

 hills in the south-west ; rare. — 

 Fl. May, June. Perennial. 



43. C. montdna (Mountain 

 Sedge). — A creeping, tufted 

 species, with slender stems, 

 6 — 18 in. high ; narrow leaves ; 

 spikelets few, sessile, crowded, 

 bright red - brown, polished ; 

 fruit obovoid, hairy, longer 

 than the glumes, with a short, 

 notched beak. — Heaths and 

 woods in the south. — Fl. April, 

 May. Perennial. 



44. C. pilulifera (Round-headed Sedge). —Tufted, with few 

 slender stems, 6 — 12 in. high, 3-angled. rough ; leaves shorter, 

 broad, weak, and flexible ; pistillate spikelets 2 or 3, globose, 

 sessile, close under the terminal staminate one ; bracts short, leafy; 

 glumes brown, broadly ovate, pointed ; styles 3-cleft ; fruit small, 

 nearly globular, shortly beaked. — Wet heaths ; common. — Fl. 

 May — July. Perennial. 



45. C. ericetcrum (Heath Sedge).— A creeping, tufted plant ; 



CARBX pilulifera (Round-headed Sedge). 



