'iii'
Il
divaricate subulate ramuli crowded towards the summit of tlie
frond.
H a b . Mount’s Bay, Cornwall, Mrs Griffiths.
Frond one to two inches high, branched, the length of the pinnæ
and pinnulæ exceedingly irregular, and often forming a kind of tuft at
the summit of the frond : the ramuli minute, divaiicated, acute and
spinose.
Var. i abnorme ; frond compressed irregularly branched, branches
and pinnæ producing at their extremities little tufts of partly deflexed
ramuli.
Fucus comeus, v a r . abnormis, T u r n . H i s t . F u c . t. 257- f- r.
H a b . North of Cornwall, Mrs Grffiths.
Frond about two inches high, and scarcely half a line broad. The
little tufts which terminate the pinnæ are composed of somewhat obtuse
ramuli, one or two lines in length, and have very much the appearance
of proliferous shoots as they sprout forth after an injury.
Yar. X. pulchellum ; frond capillary compressed tripinnate, pinnæ
between linear and clavate obtuse. Turn.
Fucus corneus, v a r . pulchellus, T u r n . H is t. F u c . t . 257* p.
H a b . Bantry Bay, Miss Hutchins.
This variety I have never seen.
Vai'. X clavifer ; frond subcylindrical capillary irregularly divided,
the ultimate ramuli or pinnulæ obovate edged with minute
scattered teeth.
Fucus corneus, v a r . clavifer. T u r n . H i s t . F u c . t . 257, Q*
H a b . Bantry Bay, Miss Hutchins-
This variety also has never come under my observation : judging of
it from Mr Turner’s figure, it appears to be rather an accidental state
of the species than a distinct variety.
Var. fi clavatum ; frond capillary, between cartilaginous and
membranaceous decumbent creeping, ramuli in the form of inversely
lanceolate or ovate leaves much attenuated at their insertion.
Sphoerococcus corneus v a r . davatus, Ag . S p . A lg . v . 1. p . 284. S y s t . A lg . p . 227«
Gelidium clavatum, L am o u r . E s s a i, p . 41.
Gelidium intricatum, L am o u r . E s s a i, p . 41, a c c o rd in g t o A g a rd h .
Fucus davatus, L am o u r . D is s e r t, p . 22, t . 22, f . 1, 2.
Chondria pusilla, H o o k . F I. S c o t. F t . 2. p . lOB. G r e v . C r y p t . F I. t. 79.
Fucus pusillus, S ta c k h . N e r . B r i t . p . 16. t . 6’. T u r n . H is t. F u c . t . 108.
Fucus casspitosus, S t a c k h . N e r . B r i t . p . 59, t. 12.
H a b . Sidmouth, and at St Michael’s Mount, Stackhouse. At
Brighton, and elsewhere on the Sussex coast, Mr Borrer. Rocks opposite
Caroline Park in the Frith of Forth, Dr Richardson.
Fronds matted, creeping, half an inch to an inch in length, irregularly
and loosely branched, capillary, compressed, dilated here and
there, and bearing scattered leaf-like ramuli one or two lines in length,
rounded at the end.
I Iiave never seen capsules on this variety, but ternate granules are
not unfrequently imbedded in the fiattish leaf-like ramuli. It is very
abundant on the range of sandstone rocks running out into the sea, opposite
Sidmouth, where Mr Stackhouse first found it. Gelidium intricatum
is the Fucus intricatus of Professor Mertens’ MSS., and is
quoted by Agardh on the authority of specimens.
Var. V crinalis; frond setaceous subcylindrical somewhat dicho-
tomously branched, sometimes three-forked at tbe top, and bearing
a few elliptical-oblong ramuli attenuated at their insertion.
Sphoerococcus corneus v a r . crinalis, Ag . S p . A lg . v. 1. p . 285. S y s t. A lg . p . 227.
Fucus crinalis, T u m . H is t. F u c . t. 198.
H a b . On the coast of Norfolk, Turner. Sidmouth, Mrs Griffiths.
Near Ilfracombe, Mr Hare. Kilmouth, in Cornwall, Mr Rashleigh.
At Brighton, on the flat chalk-rocks about low-water-mark, Mr Borreft
Belfast Lough, Mr Templeton.
Frond one to three inches high, gi-owing in a matted half-creeping
manner upon the rocks, capillary or setaceous, variously branched, generally
of a blackish or dark purple red colour. The small leaf-like
ramuli, which occur towards the summit, frequently contain ternate
granules, but I have failed in my endeavours to discover capsules. In
the Historia Fucorum, the plant, as distinguished by a trifid apex, is
said, on the authority of Professor Mertens, to grow on the west coast
of France. It is also frequent on the coast of Devonshire. This and
the preceding variety pass insensibly into each other ; and Agardh has
actèd correctly in uniting both with Gelidium corneum.
-dL