Ser. CHLOROSPERMEX. Fam. Confervee. 
Puate CCLXXV. 
CLADOPHORA ALBIDA, Kitz. 
Gen. Cuar. Filaments green, jointed, attached, uniform, branched. Fruit, 
aggregated granules or zoospores, contained in the articulations, 
having, at some period, a proper ciliary motion. CrapopHora (K7iéz.), 
—from krados, a branch, and popew, to bear. 
CiapopHora alsida; filaments exceedingly slender, flaccid, pale yellow 
green (whitish when dry), forming dense, silky, or somewhat spongy, 
soft, intricate tufts; branches crowded, irregular, the uppermost 
patent and mostly opposite; ramuli opposite or secund ; articulations 
four or five times as long as broad. 
CiapopHora albida, Kiitz. Phyc. Un. p. 267. Sp. Alg. p.400. Hassall, p. 224. 
Conrerva albida, Huds. Fl. Ang. p.595. Dillw. Conf. p. 66.t. E. 2. Bot. 
t. 2327. Harv. in Hook. Br. Fl. vol. ii. p. 358. Harv. in Mack. Fl. Hib. 
part 3. p. 229. Harv. Man. ed.1. p. 138. Wyatt, Alg. Danm. no. 96. 
Has. On rocks and Alge, between tide-marks, usually near low-water 
mark. Annual. Summer. Not uncommon on the southern shores 
of England, and the south and west of Ireland. 
Groer. Distr. Shores of Europe ? 
Descr. Tufts six to twelve inches long, dense, soft and silky, retaining water 
like a sponge. Filaments inextricable, often rolled together below into thick 
rope-like bundles, mostly free and feathery above, exceedingly slender and 
excessively branched. It is impossible to follow the branching through the 
whole plant, but when small fragments broken from the lesser divisions are 
placed under the microscope, the branching seems partly opposite and 
partly secund: the penultimate branchlets are usually opposite and very 
patent; the ultimate ramuli generally short and secund. The upper 
branches are not much more slender than the lower, and the articulations, 
throughout the frond, are nearly uniformly from four to five times as long 
as broad. The colour is a pale, and peculiarly pleasant, yellowish green, 
fading in the herbarium to a dull whitish green without gloss. The 
substance is soft and flaccid, and the plant adheres pretty strongly to 
paper in drying. 
A handsome species, and one of the earliest recognized, dis- 
tinguished from most of our common kinds by the tenuity and 
softness of the filaments, their length, and the uniformly skort 
articulations. It is most nearly related to C. refracta, with 
which Agardh unites it, but is a taller plant with less patent and 
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