Ser. CHLOROSPERMEA. Fam. Oscillatoriea. 
Puate CCLIV. 
CALOTHRIX CONFERVICOLA, “4%. 
Gun. Cuar. Filaments destitute of mucous layer, erect, tufted, or aggre- 
gated, fixed at the base, somewhat rigid, not oscillating. Zude con- 
tinuous; endochrome green, densely annulated, at length dissolving 
into lenticular sporidia. Catorurix (4g.),—from xados, beautiful, 
and Op&, a hair. 
Catoturix confervicola ; filaments short, glaucous, opake, filiform, blunt, 
rigid, straight or slightly curved, tufted. 
Catorurix confervicola, 4g. Syst. p.70. Harv. in Hook. Br. Fl. vol. ii. 
p- 367. Harv. in Mack. Fl. Hib. part 3. p.237. Harv. Man. p. 156. 
Wyatt, Alg. Damn. No. 229. 
LEIBLEINIA confervicola, Hndl. Gen. No. 57. 3rd Suppl. p. 21. 
LEIBLEINIA purpurea, chalybea et wruginea? Kitz. Phyc. Gen. p. 221. 
OsciLLaTorIA confervicola, dg. Syn. p. 110. Lyngb. Hyd. Dan. p. 94. 
ConFerva confervicola, Dillw. Conf. t.8. Roth, Cat. Bot. vol. iii. p. 193. 
Fl. Dan. t.1484. f.1. #. Bot. t. 2576. 
Has. On small Alge, between tide-marks; very common. Annual. 
Summer and autumn. 
Groer. Distr. Shores of Europe and North America. 
Descr. Filaments densely tufted, somewhat stellate, a lme or two in length, 
filiform, slightly tapering upwards, straight or slightly curved, not 
twisted, rigid, free or slightly 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 endo- 
chrome. 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. nxdochrome very dense, of a dark 
green-colour, reflecting glaucous tints from the surface, closely annulated. 
PPI AA AAR AAA AL AAR ARAA AA 
Very abundant on the smaller alge towards the end of 
summer, especially on Ceramium rubrum, whose fronds are some- 
times 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 
