CRYPTOGAMIA. AIGM. Fucus. 
91 
{Turn. Hist. 68. E.)— Gmel. 21. 4 -FI. Dan. 353. 
jF. laceratus, Gmel. E. Bot. JF. ciliatus. Huds. excluding his references to 
Gmelin. ( Ddesserialacerata . Hook. E.) This is the plant in its most 
perfect state : the fructifications forming the fringe at the edges of the 
foliage. Neither this nor the next var. can properly be said to have any 
stem, there being only a small knob serving the purpose of a root. Both 
of them are occasionally proliferous, sending out rows of young leaves 
from the edges of the old ones; though possibly only when some injury 
has been sustained. Gmelin describes his plant as of a dirty yellow colour, 
whence I conclude his specimens had been exposed to the w r eather. 
Var. 2. Edges entire. 
(j FI. Han. 1128— Gunn. 6. 4. E.)— Gmel. 21. 1. 
This is its appearance when it has no fructifications. 
F. laciniatus. Huds. F. ciliatus. Gmelin. Both these varieties grow upon 
rocks and stones on our sea coasts, and are very conspicuous in the 
summer months, on account of their beautiful red colour, which some¬ 
times approaches to scarlet. 
(Mr. Dawson Turner is convinced that F. laciniatus and F. laceratus 
ought to be rendered distinct species : and that the latter should embrace 
F. crispatus, as also our F. cristatus , and F. endivifolius. 
Jagged Fucus. Submarine rocks. Feb.—May. E.) 
F. bif'idus. Leaves membranaceous, flat, ribless, widening, cloven. 
Huds. 581. 
{Turn. Hist. 154— E. Bot. 773. E.) 
j Root branched, flatted, creeping. Leaf one to one and a half inch long, 
membranaceous, once and sometimes twice cloven, wedge-shaped or 
widening towards the end, purple, semi-transparent. Huds. n. 28. I 
have never seen this plant; but whatever the specimens may prove, there 
is nothing in the specific character or description of Mr. Hudson to mark 
it as distinct from F. laciniatus, of which it is perhaps only a small 
variety. F. bifidus of Gmelin is a different plant. 
(From two specimens given by Mr. Hudson to Sir Thomas Frankland, the 
latter asserts that F. membranifolius of Linn. Tr. iii. 120. is no other 
than this plant. 
Bifid Purplish Fucus. E.) Rocks and stones in the sea, Hampshire. (Near 
Whitburn and Tynemouth, rare; on the rocks in the sea near Seaton 
Sluice. Mr. Winch. E.) A. May—Oct. 
(F. sqbolif'erus. Frond membranaceous, flat, without mid-rib, 
laciniated in a palmate manner, proliferous from the margin ; 
segments dilated upwards, the extreme ones gashed at their 
apices, with numerous short, sub-setaceous teeth. Turner. 
Turn. Hist. 45— E. Bot. 2133— FI. Han. 1066. 
Colour pink, transparent; turning in decay to a dirty yellowish, and at 
length nearly to white. Substance extremely thin and tender ; under the 
microscope beautifully reticulated with roundish meshes. A strong 
resemblance exists between this and F. sarniensis, in which latter, how¬ 
ever, the substance is much thicker, while in the former it is as thin as 
gold-beaters’ skin. Turn. Hist. 
Many Branched Red Fucus. Halymenia sobolifera. Agard. Hook. This 
new British species appears to have been very rarely found; one 
specimen having been recorded in FI. Dan. and only a single plant by 
Mr. C. Fothergi.il growing on the shores of the Orkney Islands. E.) 
