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I'ricofftanes. Fr unification folitary, terminat- 
ed by a ftyle like a bridle, on the very 
edge of the leaf. Of the 13 genera de- 
fcribed by Linnaeus, we have but two, 
viz. T*. pyxidiferum, and 7*. tunbrigenfe. 
They have both been found in various 
parts of the kingdom on moid rocks. 
Pilularia. Male flowers in a line, like dud, 
on the under fide of the leaf. Females 
at the root globular, quadrilocular, 
containing many feeds. Of this there 
is but one fpecies the globulifera^ Pep- 
per-grafs It creeps along the ground 
like a mat. The leaves are three or 
four inches high, and the capfules are 
like pepper-corns. It is found in places 
that have been overflowed during the 
winter. 
Ifoetes. Male flower, anthers at the bafe of 
the inner leaves. Females, capfula bi- 
locular, at the bafe of the external 
leaves. There are of this genus but two 
fpeciesy one of which has been found at 
the bottom of fome lakes in Wales and 
in Scotland. Its fpecific appellation is 
lacuftris, Quilwort. The leaves are 
jointed, fubulate, and about four or 
five inches long. 
Thefe 
