Plate c a i r .
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: I , ii
P la t e CCLIV.
CALOTHRIX CONFERVICOLA, Ag.
Gen . Ch a e . Filaments destitute of mucous layer, erect, tufted, or aggregated,
fixed at the base, somewhat rigid, not oscillating. Tube continuous
; endochrome green, densely annulated, at length dissolving
into lenticular sporidia. Calo th e ix {Ag.),—from koKos,
and a hair.
Calotheix confervicola; filaments short, glaucous, opake, filiform, blunt,
rigid, straight or slightly curved, tufted.
C a l o th e ix confervicola, Ag. Syst. p. 70. Harv. in Hook. Br. M. vol. ii.
p. 367. Harv. in Mask. FI. Hib. part 3. p. 237. Harv. Man. p. 156.
Wyatt, Alg. Lamn. No. 239.
L e i b l e i n i a confervicola, Gen. No. 57. Zrd Suppl. p. 21.
L e ib l e in i a purpurea, chalybea et aerugiiiea? Kiitz. Phyc. Gen. p. 321.
O s o il l a t o e ia c o n fe rv ic o la , Ag. Syn. p . 1 1 0 . Lyngh. Hyd. Dan. p . 9 4 .
C o n f e r v a confervicola, Dillw. Conf. t. 8. Both, Cat. Bot. vol. iii. p. 193.
PI. Dan. 1.1484, f. 1. P. Bot. t. 3576.
H ab. On small Algae, between tide-marks; very common. Annual.
Summer and autumn.
G e o g e . D i s t e . Shores of Europe and North America.
D e s c e . Filaments densely tufted, somewhat stellate, a line or two in length,
filiform, slightly tapering upwards, straight or slightly curved, not
twisted, rigid, free or sHghtly connected together by the edges towards the
base, unbranched or sometimes throwing out from the centre of the filament
a fascicle of short ramuli, seemingly a proliferous evolution of the endochrome.
Now and then, but rarely, roundish bodies, resembling conceptacles
(represented at fig. 3) are found attached to the sides of the filaments;
their exact nature is not determined. Fndochrome very dense, of a dark
green-colour, reflecting glaucous tints from the surface, closely annulated.
Very abundant on the smaller algse towards the end of
summer, especially on Ceramium ruhrum, whose fronds are sometimes
completely hidden beneath the dense, dark-green pile,
formed by this parasite. Such specimens have somewhat the
habit of a Cladostephus, so densely and equally covered are they.
Under water they reflect glaucous tints.
I have ventured to figure globular bodies, which I never saw