P l a t e XXXV. {A).
CODIUM ADDyERENS, Ag.
Gen. Char. Frond green, sponge-like, (globular, cylindrical, or flat;
simple or branched), composed of tubular, interwoven, inarticulate
fflaments. Fructification; opake vesicles attached to the fllaments.
Codium [StacJcJi.)—from Kahov, the skin of an animal.
Codium adJmrens; frond forming a velvetty crust on the surface of rocks.
Co d ium adhterens, Afy. vol.i. p. 467. A g.Syst. p. 178. Harv.in
Hook. Journ. vol. i. p. 30.5. Wyatt. Alg. Banm. no. 127. Harv. Man.
p. 145. J. Ag. Medit. p. 22. Endl. 3rd Suppl. p. 21. Kiitz. Phyc. Gen.
p. 809. Mont. PI. Cell. Canar. p. 183.
A g a r d h ia adlieerens, Cabrera, sec. Ag.
I Iab. On marine rocks, near low-water mark. Perennial. Summer and
winter. Rare. At Torquay, Mrs. Griffiths. Sermen Cove, Land’s
End, Mr. Ralfs. At the back of the pier on a vertical rock, at
Gorran Haven; and near the Bosand, Gerrans Bay, Cornwall, Mr.
Reach. Falmouth Harbour, Miss Warren.
G e o g r . D is t r . Atlantic coasts of Europe, from the south of England to Spain.
Mediterranean Sea. Mauritius ? Canary Islands, Wehh.
D e s c r . Erond spreading over the surface of the rock in broad, indeterminate
patches, of one, two or more feet in diameter, resembling “ fragments of
beautiful green velvet ” , composed of an under layer of entangled and interwoven,
cyHndrioal filaments produeiug on tbe upper surface liiieari-clavate,
vertical brancbes, of equal length, paraUelly arranged into the even velvetty
surface of the frond, and being, as it were, the pile of the velvet. Substance
soft and gelatinous, closely adhering to paper. Colour a brilliant green,
when wet.
I am indebted to Mr. Peach of Powey for living specimens of
this curious plant, which he finds in great perfection at Gorran
Haven. It appears to be of slow growth; for Mr. Ralfs informs
me, tliat patches cut out one year, are but partially filled up after
twelve months. I am not quite certain that the Mauritius specimens,
formerly described by me, are identical with the European.
A . Fig. 1 . C o d ium a d h e r e n s :—natural size.
Filaments :—more highly magnified.
2. A portion :—magnified. 3.
ill