448 
97. CYPERACEJ,. 
2. Schoe'nus Linn., em. PohL Bog-rush. 
1. S. nigricans (L.) ; st. terete naked, spikelets 5 — 10 col- 
lected into a terminal roundish head overtopped by the lower 
bract, gl. rough at the keel.— ^. B. 1121. ' St. 40. 9 —Root 
of .strong black fibres. St. 4 — 12 in. high, clothed at the base 
with blackish-brown smooth shining scales some of which ter- 
minate in setaceous erect leaves which are shorter than the 
stem. Bristles variable in numbar, short, rough, with upward 
spines. Stigmas 3. Anth. ending in a point. CtI. 4ark brown 
or black— Turfy bogs. P. YI. E. S. I. 
2. S. ferrugin'cus (L.); st. groovfd nakeil, spiki-lets lateral 1 — 3 slender about 
equalling the erect sheathing brart, 5 — 6 to each spikelet reddish-brown smooth 
on the keel. — ./. of i:. xxiii. (1885) p. 2S9, t. 261. — Smallei ami more slender than 
Sp. 1. L. -sheaths shorter reddish-brown, lamina usually \-ery short. Bristles 
about 4. Stipmas 3. Anth. with a short point. — L. Tnmmel, Perthsh. Mr .7. 
Irelner. P. VI. VU. S. 
Tribe II. Scirpetc. 
3. Cla'dium Schrad. Sedge. 
1. C. Maris' cus (Pohl) ; panicles lateral and terminal 
repeatedly compound, spikelets capitate, st. subterete leafy 
smooth,!, finely serrate on the margins and keel. — E. /?. 950. — 
Creeping. St. 3—4 feet high. L. very long, rigid, narrowed 
and triquetrous towards the end. Fi. in each spikelet 1 — 3 ; 
but usually only one nut is produced. — Bogs and fens, rare. 
P. VII. Common Sedge. E. S. L 
4. Khynchos'pora Vald. 
1. R. al'ba (Vahl. em. Ait.) ; spikelets in a compact corymb 
about as long as the outer bracts, stam. 2, bristles with declin- 
ing teeth, ba.se of the style without teeth. — E. B. 98.5. St. 40. 
7. — Slightly creeping. St. 6—12 in. high. L. narrowly linear. 
Spikelets vhitish. Bristles 9 — 12. Eilaments slender. — /i. 
sm-dida ; spikelets brownish, in small oval clusters, often over- 
topped by the outer bract.— Turfy bogs. P. VII. E. S. I. 
2. R. fus'ca (Ait.) ; spikelets in an oval head considerabl if 
shorter than the outer bracts, stam. 3, bristles with ascending 
teeth, base of the style with erect teeth. — E. B. 1575. St. 40. 
6.— Creeping extensively. St. 6 — 8 in. high. L. nearly fili- 
form. Spikelets brotvn. Bristles 6. Filamentsdilated. — Bogs, 
rare. South-west of England. Ireland. P. VII. VIIT. E. S. 1. 
