Ser. CHLOROSPERMES. Fam. Confervee. 
Puate CLXXX. 
CLADOPHORA RUPESTRIS, 4. 
Gen. Cuar. Fi/aments green, jointed, attached, uniform, branched. Fruit, 
ageregated granules or zoospores, contained in the joints, having, 
at some period, a proper ciliary motion. CraporHora (K7itz.),—from 
KAados, a branch, and dopew, to bear. 
CraporHora ruvpestris; filaments capillary, rigid, dark green, straight, 
tufted, bushy ; branches erect, crowded, densely clothed with appressed, 
opposite, or tufted, subulate ramuli; articulations three or four times 
longer than broad. 
CrapopnHora rupestris, Kiitz. Phyc. Gen. p. 270. 
Conrerva rupestris, Linn. Sp. Pl. p.1637. Huds. Fl. Ang. p. 601. Lightf. Fl. 
Scot. p. 994. With. Br, Pl. vol.iv. p. 140. Fl. Dan. t. 948. Roth, Cat. 
Bot. vol. ii. p.238. Dillw. Conf. t.23. H. Bot. t. 1699. Ag. Syn. p.91. 
Lyng. Hyd. Dan. p. 156. t. 54. Ag. Syst. p. 117. Harv. in Hook, Br. Hl. 
vol. i. p. 357. Wyatt, Alg. Danm. no. 95. Harv. in Mack, Fl. Hib, part 3. 
p. 229. Harv. Man. p. 136. 
_ Conrerva glauca, Roth, Cat. Bot. vol. ii. p. 208. t. 6. 
Conrerva virgata, Roth, Cat. Bot. vol.i. p. 195. 
Var. p. distorta; tufts rooting in the mud, depressed; filaments short, 
much curled, and matted together ; ramuli squarrose. 
Has. On rocks in the sea, between tide-marks ; also beyond the limits of 
low water. Annual. Summer and autumn. Abundant on all the 
British shores. 8. On submarine peat, at Birturbui Bay, Conne- 
mara, Mr. Me Calla. 
Grocr. Distr. Atlantic shores of Europe. Baltic Sea. 
Descr. Root (except in var. 8.) scutate. Filaments densely tufted, from four to 
six or eight inches in length, thicker than human hair, very much branched. 
Branches virgate, long, straight, repeatedly divided, set with opposite or 
quaternate, very erect, lesser branches, which are more or less furnished 
with ramuli. amuli closely appressed, subulate, tapering to a fine point, 
opposite, or occasionally alternate, or three or four rising from the same 
articulation, the pairs more or less approximating together. Articulations 
from three to five times longer than broad, slightly contracted at the disse- 
piments, filled with a dense endochrome. Swéstance rigid, not adhering 
to paper in drying. Colour a beautiful dark green, sometimes, especially 
when growing in deep water, reflecting glaucous tints. 
DP 
A very beautiful plant, when well grown, common on all our 
rocky shores, and extending through the whole of the littoral zone, 
even into the belt of the Lamizaria. Specimens gradually increase 
P 2 
