CRYPTOGAMIA. ALG, Fucus. A. With Brappers: 
winged: leafits mid-ribbed, varying much in breadth, rather 
toothed than serrated. Besides the larger external globules called 
fructifications, there are.other minute granulations within the 
substance of the leaves. a 
.»» Sea shores. Isle of Sheppey : Northumberland: and thrown 
on the shore near Falmouth. P. Jan.—Dec. 
Ba Thread-shaped, very much branched ; branches alter- 
_ hate, two-rowed: bladders elliptical, in the sub- 
stance of thelegf:, léaves bristle-shaped. Huns. 575. 
Branches neatly upright, zigzag. Leafits alternate, upright, 
tiled towards the andi of the Bae Vesicles ee ne aah 
substance of the stem and branches, about the size of a vetch. 
Hups. z. 8.— Gmelin describes his plant thus. “Substance car- 
tilaginous, 6 inches high, brownish green. Stem flat, twisted at 
bottom, 4 of an inch over, short. Braxches numerous, alter- 
nate,-divided and subdivided in various directions, and ulti- 
mately ending in a fork. Amongst the smaller branches and 
on the stem, are numerous teeth, simple or forked, various in 
their size, so as to give.a fringed appearance to the plant. The 
swelling of these teeth leads one to think that they perform the 
(Se ate 
(32 his 
Office of fructification, Gmettn fuc. 160.” 
"Phe above reference to Boccone is given on the authority of 
Mr. Hudson, for I have not seen the book. Mr, Hudson also 
cites Gmel. 18. 2, but adds a mark of doubt, and from Gmelin’s 
description, I think it is evident that Mr. Hudson’s must be a 
different plant. je 
Rocks and stones in the sea, but rather scarce. P. Jan.— Dec. 
seta’ceus._ 
F. Thread-shaped, much branched ;: branches alternate : tamarisci- 
_ bladder roundish, imbedded: leaves alternate in 
pairs, awl-shaped, with tubercles at the base. 
Stackh. ii.-13-Gmel, 11. 2. 
The imbedded air-bladders contain filaments stretched across; 
analogous to the bladders in other Fuci. Fructification very visi- 
ble in a slice cut out from the end of the branches. Whole plant 
_ horny to the touch, and almost prickly. Mr. SrackHouse. 
‘This Fucus is found on submarine rocks at very low water, 
and is readily discovered by the bright glaucous tints which are 
reflected from it. It dries black, but if well preserved will re- 
tain on its upper branches, a mixture of muddy green colour, 
from whence those beautiful tints originate in its natural state. 
Major Vettey. From 2 to 4 inches high; bushy or rather 
tree-like in its growth. Mr. Hudson quotes the F. selaginoides 
Linneus as a synonym, but we believe that plant has never 
yet been found on our coasts. The synonyms are the same as 
fo’lius, 
