328 
CYPERACE-ffi. 
gone, 1 style and 2 — 3 stigmas. Male fl. of 3 stam., with- 
out a perianth. 
Tribe I. Cyperecs. 
1. Cyperus Linn. 
1. C. longus (L.) ; spikelets linear-lanceolate in erect twice 
compound umbels, peduncles of partial umbels erect unequal, 
stigmas 3, root creeping. — E. B. 1309. St. 52. 10. — St. trian- 
gular, 2 — 3 feet high. Umbel very large unequal, its stalks tri- 
angular and closely sheathed at the base, its base with 2 or 3 
long leaves. Glumes brownish-red, with green keels and pale 
margins. — South of England, rare. P. VII. E. 
2. C.fusvus (L.) ; spikelets linear-lanceolate in small roundish 
heads at the extremities of the branches, glumes spreading, stig- 
mas 3, root fibrous.— E. B. S. 2626. St. 52. 5.— A small 
nearly prostrate plant with numerous stems, 2 — 5 in. long. 
Heads with 3 unequal I. at the base. Glumes fuscous, with 
green keels. — A. Marshy meadow at Little Chelsea, Middlesex. 
Jersey. P. VIII. IX. E. 
2. Schcenus Linn. 
1. S. nigricans (L.) ; st. round naked, spikelets 5 — 10 col- 
lected into a terminal roundish head overtopped by the lower 
bract, glumes scabrous at the keel. — E. B. 1121. St. 40. 9- — 
Root of strong black fibres. St. 8 — 12 in. high, clothed at the 
base with blackish-brown smooth shining scales some of which 
terminate in setaceous erect leaves which are shorter than the 
stem. Bristles variable in number, short, rough with upward 
spines. Stigmas 3. Anth. terminating in a point. Glumes 
dark-brown or black. — Turfy bogs. P. VI. 
Tribe II. Scirpece. 
3. Cladium Pat. Br. 
1. C. Mariscus (R. Br.) ; panicles lateral and terminal repeat- 
edly compound, spikelets capitate, st. roundish leafy smooth, 1. 
rough on the margins and keel. — E. B. 950. — Root creeping. 
St. 3 — 4 feet high. L. very long, rigid, narrowed and triquetrous 
towards the end, the margins and keel with fine but very acute 
serratures. Fl. in each spikelet 1 — 3, but usually only one nut 
is produced. — Bogs and fens, rare except in Cambridgeshire. 
P. VII. Common Sedge. 
4. Rhynciiospora Vahl. 
1. R. alba (Vahl) ; spikelets in a compact corymb about as 
long as the outer bracts, stam. 2, bristles with deflexed teeth. 
