CRYPTOGAMIA. ALG. Fucus. E. (1) Flat, ribless, 
OPAKE, : 
1 : , a 
Many times forked, smooth, narrow, one side convex, the 
other channeled. Fructifications terminating, dividing into 2, 
or in pairs, sitting, sprinkled with perforated tubercles. Livy, 
Grooved, or cut into longitudinal hollows on one surface, 
Stems and leaves ribless. Gmextn fuc. 73. Seldom exceeds 3 
or 4 inches in length, but covers the surface of the rocks for 
many yards square. It has fruit-bearing and barren branches 
at the same time, the former appearing to be 2 years old or 
more. The ends are almost or quite yellow when ripe, and 
much tubercled. The fructification is precisely analogous to 
' that of F, vesiculosus, but the seeds are larger. Mr. Srack- 
. pygme“us, 
pusil’Jus. 
HOUSE. : j 
F. CXCISUSe Linn, Spe pl. 1627. Syst. nat. ed, xil. 715. Huds, 
ed. i. 468, : 
Rocks and stones in the sea. P. June—Aug. 
F. Gristly, compressed, ribless, hand-shaped : fructifica- 
tions terminating, roundish ; perforated at the end. 
Light, a 1, at pe 948. 3 
Gristly, black; dark green when held against the light; 
seldom ae than 3 of an inch high. Licutr, 7 has aie. 
nce-of a moss in its crowded growth, entirely covering 
the surface of the rocks, in patches; is hard and brittle like a 
Lichen, and may be considered as amphibious, being under 
water only at the time of high tide, __ 
F. pumilus. Huds. 584, but not F. pumilus of Flora Danica. 
Rocks in the little isles of Jura washed by the tides, on the 
coast of Jona, and in the Frith of Forth, and several other 
places. LicHtr, Rocks and stones in the sea between high 
and low water mark. Huns. [Coasts of Cornwall. Mr. Stacks 
HOousE.} P. June—Oct, 
¥. Creeping, branched, matted together: leaves ribless, 
spatula-shaped, either entire and rounded at the 
end, or cloven or 3-cleft. 
Stackh. pl. 6. 
Not 4 
3 of an inch high. It grows in tufts like a Lichen, 
black in the mass, but pale red oh held against the light. 
Substance rigid, horny. It is branched from the root, the lower 
part of the branches garnished with a strap-shaped fringe. 
‘The spatula-shaped leaves appear at the end of these branches. 
Fractification not yet discovered. The Fucus pygmzus grows 
_ upright, this isa creeping plant. Nereis Britannica. 
First discovered by Mr, Stacxuouss on the red sand stone 
rocks at Sidmouth. = 
