CVI. CYPERACEyE. 
489 
Clddium.~\ 
1. C. Idngus L. (sweet C., or English G .) ; spikelets linear- 
lanceolate ereeto-patent in doubly compound umbels, general 
involucre very long leafy, partial small, stem triangular, stig- 
mas 3. E. B. t. 1309. 
Very rare. Marsh near St. David’s, Pembrokeshire; Walton-in- 
Gordano, Somersetshire; near Swanage, Dorsetshire; near Sea- 
brooke, Kent; Boyton, Wilts; Penzance, Cornwall; Iple of Wight. 
Guernsey and Jersey. If.. 8, 9. — Rhizome creeping, very aromatic 
and astringent. 
2. C. fuscus L. (brown C.) ; spikelets linear-lanceolate 
fasciculato-corymbose, glumes patent, involucre of 3 unequal 
leaves, stem triangular, stigmas 3. E. B. S. t. 2626. 
Eel Brook meadow, Little Chelsea, near Walham Green; pond 
on Shalford Common, 2 miles from Godaiming, plentiful ; Codhill 
bog, Guisborough Moor, Yorkshire. Jersey. 0. 8, 9. — A small 
plant, only a few inches high. Root fibrous. Stamens usually 2. 
2. Schce'nus Linn. Bog-rush. 
Spikelets 1 — 4-flowered. Glumes 6 — 9, imbricated in 2 op- 
posite rows ; lower ones smaller, empty. Hypogynous bristles 
3 — 6, small or none. Style 3-fid, deciduous ; its base not di- 
lated nor jointed upon the gertuen. Achene trigonous, tipped 
with the slender base of the style, or pointless. — Name: from 
rr^oivoc, a cord ; because a kind of cordage was anciently made 
from plants of this tribe. 
1. S. nigricans L. (black B.) ; stem nearly terete, spikelets 
collected into a roundish head shorter than t<he outer bracteas, 
glumes scabrous at the keel. E. B. t. 1121. 
Wet moors and boggy places. Rare in Scotland, except on the 
West coast. 2/.. 6, 7. — Remarkable for its rigid habit, nearly se- 
taceous leaves, and the dark brown almost black heads of flowers. 
“ Bristles small, 3 — 5, reddish-brown, spiny, the spines pointing 
upwards : ” Mr. Wilson. On account of the bristles this belongs 
to Mr. Brown’s genus Chcetospora, which merely differs by that cha- 
racter. 
# * Flowers perfect. Glumes of each spikelet imbricated on all 
sides. Perigynium 0. (Gen. 3 — 9.) 
3. Cladium Schrad. Twig-rush. 
Spikelets 1 — 3-flowered. Glumes 5 — 6, imbricated on all 
sides, the lower ones empty and smaller. Style deciduous ; its 
base conical, not jointed upon the germen. Achene with a some- 
what loose, fleshy, or corky coat, tipped with the persistent en- 
larged base of the style. Hypogynous bristles none. — Named 
y 5 
