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CHÆTOPHORA m a r in a .
Marine Cliætophora.
C l a s s a n d O e d e b . CRYPTOGAMIA ALGÆ, L im — N a t . O iid . CHÆTOPHOROIDEÆ,
Grev,—ALGÆ, Juss. &c.
G E N E R IC C H A R A C T E R .
Massa gelatinosa, elongata vel globosa, Jilis ramosis articulatis, farcta.—(Lyngb.)
A gelatinous, elongated or roundish mass, filled with branched articulated
filaments.
s p e c i f i c c h a r a c t e r .
C h æ t o p h o r a m a r i n a ; massa globosa, subcoriacea, cava; filis intra substantiam
densissimis, dichotomo-ramosis; ramisfastigiatis, apice clavatis.—(Lyngb.)
Ch. mass globose, hollow, somewhat coriaceous ; filaments densely arranged
in the substance of the plant, branched dichotomously ; branches fastigiate
and clavate at the apex.
C h æ to p h o r a marina, Lyngb. Tent. p. 193. t. 66. f. A.—Grev. Fl. Fdin. ined.
N o s to c marinum, Ag. Disp. p. 45.—Syn. p. 133.
T r e m e l l a difformis, Linn. Sp. PI. l6 z6 .—Huds. Fl. Ang. v . 2. p. 565.—
With. Bot. Arr. ed. 6. v. 4. p. 97.
R i v u l a r i a tuberiformis, Fng. Bot. t. 1956.
L e a t h e s i a t u b e r i f o rm i s , Gray’s Nat. Arr. v . 1 . p . 301.
H a b . In the sea attached to rocks or various Algæ. Common on the shores
o f all the Hebrides, Mr T u r n e r , in Eng. Bot. Frequent in the F rith
of Forth. Autumn— In England, it has been found by Messrs T u r n e r
and S o w e r b y a t Kynance Cove, Cornwall ; and by the Reverend G. R.
L e a t h e s in the Isle of Wight. Mr S t a c k h o u s e also found it, but
W i t h e r i n g does not mention the station.
Plants gregarious, roundish, sometimes indistinctly lobed, often plicate beneath,
rather soft, yet coriaceous. Size extremely various ; from that of
a pea to a small walnut. The surface is smooth and slippery ; the interior
hollow, and the substance in which the filaments are imbedded
about ¿tb of an inch thick. Filaments hyaline, much branched, jointed,
dichotomous, the apices of the branches all terminating at the surface in
dark club-shaped granules. Duration annual.
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It is impossible, in tbe present state of our knowledge of
tbe minuter algas, to arrange tbem into satisfactory genera.
L yng by e appears to me to bave been more successful tban any