38 
Triandria . 
Scirpus. Gen. char. — Glume chaffy, imbricated or 
all sides ; cor. none ; one seed. 
Scir. JPalustris, Marsh-creeping Club-rush ; with a 
round stem, sheathed at the base, spike terminal, nearly 
oval, glumes acute, root creeping ; very common in dit- 
ches, marshes, and small streams ; is perennial, and 
flowers in June and July. 
Scir. Lacustrisy Bull-rush ; stem round, naked, pani- 
cle cymose, terminal, spikelets ovate; is common in clear 
water, as in still rivers and lakes ; is perennial, flowers 
in July, and rises to the height of four or five feet. 
The Bull-rush is also a native of Jamaica, where it 
is employed, as in England, in thatching cottages and 
stuffing chair-bottoms. 
This is also a very numerous genus, the species of 
which are spread over the southern parts of Europe, 
the East and West Indies, and America. 
Eriophorcjm, Cotton-grass. Gen. char.— Glumes 
chaffy, imbricated on all sides ; cor. none ; seed one, 
surrounded with very long wool. 
Er. Vaginatuniy Single-headed Cotton-grass ; with 
round sheathed stems, solitary spike, and membranous 
glumes; perennial, flowers early in the spring, and is 
common in marshy and boggy places throughout Bri- 
tain. 
Er. Potystachion , Broad-leaved Cotton-grass ; with 
round stems, plain leaves, and spikes with foot-stalks ; 
is perennial ; flowers in April, and is equally common. 
Er. Angustifolium, Common Cotton-grass; with round 
stems, grooved leaves, triangular at the top, and spikes 
on foot-stalks ; grows in similar places with the pre- 
ceding. 
