CYPERUS. 447 



6. SCIRPUS. Glumes nearly equal ; or 1 or 2 lowest broader, 

 empty. Bristles about 6 or 0. Nut plane-convex or tri- 

 gonous ; base of the style filiform, not dilated. 



7. BLYSMUS. Two lowest gl. broader, and empty. Bristles 

 3 6. Nut plane-convex, tipped with the not dilated base 

 of the style. Spikelets with bracts, alternate^ forming a close 

 distichous compound terminal spike. 



tt Bristles ultimately much exceeding the glumes. 



8. EmopHORUM. Glumes nearly fequal, lowest sometimes 

 empty. Bristles ultimately silky. Nut trigonous. 



Tr. III. ELYNE^E. Fl. unisexual. Perianth or formed of 

 1 or 2 scales. 



0. KOBRESIA. Spikes close together. Lower fl. fern., peri- 

 anth of 1 scale enclosing the germen and covered by the 

 glume. Upper fl. male, without any perianth. 



Tr. IV. CARICE/E. Fl. unisexual. Nut completely enclosed 

 in the bottle-shaped perianth. 



10. CAREX. Fl. in imbricate spikes, each covered by a 

 glume. Female ti. with a single bottle-shaped persistent 

 perianth, 1 style and '2 3 stigmas. Male fl. of 3 staui., 

 without a perianth. 



Tribe I. Cypereae. 



1. CYPE'RTJS Linn. Galingale. 



1. C. Ion (/us (L.) ; spikelets linear-lanceolate in twice-com- 

 pound umbels, peduncles of partial umbels erect unequal, stig- 

 mas 3, creeping. E. B. 1309. St. 52. 10. St. triangular, 23 

 feet high. Umbel very large, lax, unequal, its base with 2 or 

 3 long leaves. Glumes brownish red, with green keels and pale 

 margins. South of England, rare. P. VIII. IX. E. 



2. C.fus'cus (L.) ; spikelets linear-lanceolate in small round- 

 ish heads at the extremities of the branches, gl. spreading, stig- 

 mas 3, root fibrous.^. B. S. 2626. St. 52. 5. A small nearly 

 prostrate plant. Stems many, 2 5 in. long. Heads with 3 

 unequal 1. at the base. Glumes fuscous with green keels. 

 Formerly at Little Chelsea, Middlesex; Shalford Common, 

 Surrey. Somerset. Dorset. S. Hants. Jersey. A. VIII. IX. E. 



