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CHONDRIA PUSILLA.
D w a r f Chondria.
C la s s a n d O r d e r CRYPTOGAMIA ALG?E, L m a .— NAX. O r d . ALGJE,
Juss. De Cand. Grev., &c.
GEN ERIC CHARACTER.
Froiis continua, Jiliformis, gelatinoso-cartilaginea. Fructificatio duplex; spo-
rulx nudce suhstantim ramuhrum immersce et tuberculoe externce.
Frond continuous, filiform, between gelatinous and cartilaginous. Fructification
double; naked sporules immersed in the substance of the ramuli
and external tubercles.
S PE C IF IC CHARACTER.
Chondria pusilla; carlilaghieo-cornea, c(mpressa,Jiliformi, hie illic articulato
contracta, ramosissima ; ramulis horizontalibus basi attenuatis, apice
dilatatis et rotundatis (Turn.)
Ch. frond carUlagino-corneous, compressed, filiform, here and there contracted
as if jointed, much branched; branches horizontal, attenuated at their
base, dilated and rounded at their apex.
C h o n d r ia pusilla. Hook. FI. Scot. 2. p. 106.— Grep. FI. Edin. ined. p. 392.
Fucus pusillus, Stackh. Ner. Brit. p. 16. t. 6.—Turn. Hist. Fuc. v. 2. p. QQ.
t. 108. .
U lv a filiformis, FI. Dan. t. 94,g.?
H ad. In the sea. Rocks opposite Caroline Park, near Edinburgh, Dr R ichardson.
I subsequently found it in same station, without being aware
ot Dr Richardson’s p r iority.-In England, since Mr Stackhouse discovered
It near Sidmouth, it is recorded to have been seen only by Mr
B orrer at Brighton, and elsewhere on the Sussex coast. It is perennial,
and in perfection about May.
Plant o f a purple pink color, smooth, shining, spreading over the rocks for
many inches like Chondria opuntia. Root creeping, and passing insen-
sibiy into the fronds. Fronds very entangled, much branched, ascending,
troin half an inch to above one inch long, almost flat, very variable in
thickness, even from a fine bristle to one-third o f a line, here and there
contracted, and often suddenly attenuated or incrassated. Branches dilated
towards the rounded apex, patent, and often bearing minute, club-
shaped ramuli. Fructification double; naked red sporules immersed in
the ramuli, and minute, external, blackish tubercles.? Substance somewhat
corneous. It scarcely adheres to paper in drying.
VOL. II.