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F U C U S lac^ratus.
Endive-leaved Fucus.
CRYPTOGAMIA Alga.
Gen. Char. Seeds produced in cluttered tubercles,
which burft at their fummits.
S p e c . C h a r . Frond membranous, thin, branched
and forked, veiny at the bafe ; branches linear,
obtufe, waved and jagged. Tubercles imbedded,
fcattered.
Sy n . Fucus laceratus. Gmel. Fuel, 179. t. 21. f . 4 .
Turn. Syn. 154* Gooden, and Woodw. Tr. o f Linn.
Soc. v . 3. 155j «• Hull. 320.
F. crifpatus. Hudf. 580.
F. laciniatus var. 1. W ith. v . 4. 10a.
F. endiviaefolius. Lig htf. 948. t. 32. ƒ. 2. With,
v . 4. 103.
O n rocks and ftones on moft parts of the Britifh coaft in
the latter part of fummer, perfe&ing its feeds in autumn.
The plant grows from a minute hard tubercle, and in a
young ftate creeps, or is fixed by its edges, in a peculiar manner
(as Mr. 1 urner obferves) upon the fiones or furrounding plants.
The whole frond is very thin and delicate, branched immediately
from the bafe, varioufly divided, waved, and curled, of
a pale, tranfparent, often brownith, red; its ends obtufe; its
margin either entire or minutely lacerated ; its bafe marked
with dark, parallel, interbranching veins, which vanifh two
or three inches from the root, and the reft of the frond is
uniform and veinlefs, except when feen under a microfcope,
when its whole fubftance appears a kind of net-work. The
feeds grow in final], fcattered, dark-red, flighlly prominent
tubercles, immerfed in the frond, chiefly fituated near the
edges of its uppermoft fegments.