Ser. CHLOROSPERME. Fam. Confervee. 
Puate VI. 
CLADOPHORA LANOSA, Kitz. 
Gen. Cuar. Filaments green, jointed, attached, uniform, branched. Fruit ; 
ageregated granules or zoospores, contained in the joints, having, at 
some period, a proper ciliary motion. 
Crapopuora Janosa; Filaments slender, short, yellow green, forming dense 
globular tufts; branches virgate, erect, subdistant, straight, alternate 
or rarely opposite; ramuli few, alternate or secund; axils very acute ; 
lower joints twice, upper six times, as long as broad. 
Crapopuora lanosa, Kitz. Phyc. Gen. p. 269. 
ConFerva lanosa, Roth. Cat. Bot. vol. iii. p. 291. t.9. Sm. #. Bot. t. 2099. 
Lyngb. Hyd. Dan. p. 160. t.56. Dillw. Conf. t. HB. Ag. Syst. Alg. p. 112. 
Grev. Fl. Edin. p.316. Harv. in Hook. Br. Fl. vol.ii. p. 358. Man. p. 138. 
Wyatt. Alg. Danm.no. 194. 
Has. In the sea, on rocks, or, more frequently, on the larger Fuci.  Fre- 
quent on the shores of the British Islands. 
Groer. Distr. Northern Atlantic shores of Europe. Baltic sea. 
Desc. Tufts 1-2 inches in diameter, globose, made up of innumerable” slender 
entangled filaments radiating from a centre. Filaments stoloniferous below, 
or sending out, here and there, irregular root-like imperfectly jointed pro- 
cesses ; branches few, straight and erect. Joints of the lower part of the 
filament short, once or twice as long as broad; those of the upper branches 
very long. When dried on paper, to which it adheres more or less closely, 
it is wholly without gloss, and faded to a whitish green, except round the 
circumference where it usually retajns a glaucous or verdigris colour. The 
endochrome is very fluid and not well preserved in drying. 
non 
This plant is found in abundance on most of the Atlantic shores 
of Europe, inhabiting the old stems of Fucus serratus and F. ve- 
siculosus, the leaves of Zostera marina, and occasionally, but far 
less frequently, growing on submarine rocks and stones. It is 
decidedly found in greater perfection and abundance as we pro- 
ceed northwards, and on the west coast of Scotland the finest 
specimens we have seen are gathered. From one of these, col- 
lected by the late Capt. Carmichael, our figure is taken. 
Dr. Roth first described his Conferva /anosa in the third part of 
his ‘Catalecta Botanica,’ published in 1806 ; and soon afterwards 
Mr. Dillwyn introduced it to the notice of British Botanists in the 
