RUSH FAMILY 501 



as long as the pale brown, beaked capsule. — Boggy places; 

 common. — Fl. June — August. Perennial. 



18. /. bulbosus (Lesser Jointed Rush).— A small and very 

 variable plant, less than a foot high, erect or prostrate ; with 

 thread-like stems ; bristle-like, slightly-grooved leaves ; flowers in 

 an irregular, little-branched panicle of a few distant clusters ; 

 capsules pale brown, oblong, blunt, mucronate. — Boggy places ; 

 common. — Fl. June — August. Perennial. 



19. /. alpinus (Alpine Jointed Rush). — Stem erect, about a 

 foot high, 2 — 3-leaved ; leaves sessile, pointed, slightly compressed 

 and striate, with few articulations ; flowers in clusters of 3 — 8, in 

 a repeatedly forked, erect, terminal panicle, black or dark brown ; 

 bracts acuminate ; perianth-leaves blunt ; capsule blackish, obtuse, 

 mucronate, longer than the perianth-leaves. — In the north of 

 Scotland ; rare. Perennial. 



20. /. articulatus (Shining-fruited Jointed Rush). — Stem erect, 

 1 — 2 feet high, slightly compressed, 3 — 6-leaved ; leaves com- 

 pressed, with many internal divisions ; flowers in clusters of 4—8, 

 in a repeatedly-forked, erect, terminal panicle ; perianth-leaves, 

 shorter than the large, dark brown, glossy capsule. — Boggy places ; 

 common. — Fl. July, August. Perennial. 



*** Annual ; stem hollow 



21. /. bufonius (Toad Rush). — A very small species, 2 — 8 in. 

 high, with slender, pale green, hollow, repeatedly-forked stems ; 

 few, narrow, bristle-like leaves ; solitary, sessile, green flowers, 

 which grow mostly on one side of the stem ; and oblong, blunt 

 capsules, shorter than the perianth. — Moist places ; abundant, 

 often in large patches — Fl. June — August. Annual. 



22. /. capiidtus (Capitate Rush). — Avery small, tufted plant, 

 with naked, erect, unbranched, bristle-like stems, 1 — 4 in. high ; 

 radical thread-like, channelled leaves, 1 — 2 in. long ; and large, 

 terminal, bracteate heads of 3 — 10 sessile, pale flowers ; perianth- 

 leaves with slender, awn-like points, twice as long as the pointed 

 capsule ; stamens 3. — Sandy places liable to flooding, West Corn- 

 wall and the Channel Islands. — Fl. May — July. Annual. 



23. /. mutdbilis (Pigmy Rush). — A very small, tufted plant, 

 1 — 2 in. high, with slender, little-branched stems ; leaves mostly 

 radical, bristle-like; flowers in a few small clusters ; perianth-leaves 

 linear, acute, longer than the oblong-acute, 3-edged capsule. — 

 Damp places near the Lizard. — Fl. May, June. Annual. 



2. Luzula (Wood-Rush). — Differing from Juncus in having flat, 

 more grass-like leaves more or less hairy, with long weak, white 



