326 SUMMER FLOWERS. 



(290) Allium. Garlic. 



* Stems leafy. 



A. oleraceum : stems 1-2 feet high ; leaves narrow-linear, 

 nearly flat, rather thick, their sheathing bases covering the 

 stem a considerable way up ; spathe-valves with long, linear 

 points ; flowers pale-brown, in loose umbels, intermixed with 

 bulbs. — Cultivated and waste places. Fl. July, August. 



A. vineale : stem two feet high, leafy below ; leaves terete, 

 hollow ; flowers pale rose-colour with green keels, in globose 

 umbels, having bulbs intermixed «^ith the flowers. — Crow 

 Garlic. — Cultivated and waste places. Fl. July. 



** Stems leafless. 

 A. ursinum : leaves thin, flat, spreading, ovate-lanceolate ; 

 flower-stem scarcely a foot high, bearing a loose umbel of 

 about a dozen white flowers, the perianth-segments lanceolate, 

 spreading. — Ramsons. — Woods and shady places. Fl. May, 

 June. 



A. triquetrum : leaves broadly linear, flat but folded and 

 keeled ; flower-stem 6-8 inches high, bearing a loose, slightly 

 drooping umbel of rather large white flowers, the perianth- 

 segments oblong, not spreading. — Hedges in Guernsey. Fl. 

 May, June. 



(291) Butomus. Flowering Rush. 



B. umbellatus : aquatic; leaves long, erect, triangular; 

 flower-stem leafless, 2-4 feet high, rush-like, bearing a large 

 umbel of showy, rose-coloured flowers, the perianth an inch 

 across, of six ovate, spreading segments. — Watery ditches and 

 sides of rivers. — Fl. June, July. 



