Phycologia britannica, or, A History of British sea-weeds, containing coloured figures, generic and specific characters, synonymes, and descriptions of all the species of algae inhabiting the shores of the British Islands . out the frond, are nearly uniformly from four to five times as longas broad. The colour is a pale, and peculiarly pleasant, yellowish green,fading in the herbarium to a dull whitish green without gloss. Thesubstance is soft and flaccid, and the plant adheres pretty strongly topaper in drying. A handsome species, and one of the earliest recognized, dis-tinguished from most o
Phycologia britannica, or, A History of British sea-weeds, containing coloured figures, generic and specific characters, synonymes, and descriptions of all the species of algae inhabiting the shores of the British Islands . out the frond, are nearly uniformly from four to five times as longas broad. The colour is a pale, and peculiarly pleasant, yellowish green,fading in the herbarium to a dull whitish green without gloss. Thesubstance is soft and flaccid, and the plant adheres pretty strongly topaper in drying. A handsome species, and one of the earliest recognized, dis-tinguished from most of our common kinds by the tenuity andsoftness of the filaments, their length, and the uniformly shortarticulations. It is most nearly related to C. refracta, withwhich Agardh unites it, but is a taller plant with less patent and VOL. III. L less compound ramification, a softer substance, a paler colour,and altogether a different aspect. I confess, however, that it isdifficult at all times to affix clear limits between these are uncommon on rocky shores between tide-marks. Fig. 1. Cladophora albida :—the natural size. 2. Small part of a branch:— magnified. 3. Ramuli:—more highly magnified. ria-u. Ser. Fam. Confervea. Plate VI. CLADOPHORA LANOSA, Kutz. Gen. Char. Filaments green, jointed, attached, uniform, branched. Fruit;aggregated granules or zoospores, contained in the joints, having, atsome period, a proper ciliary motion. Cladopiiora lanosa; Filaments slender, short, yellow green, forming denseglobular tufts; branches virgate, erect, subdistant, straight, alternateor rarely opposite; ramuli few, alternate or secund; axils very acute;lower joints twice, upper six times, as long as broad. Cladopiiora lanosa, Kiitz. Phyc. Gen. p. 269. Conferva lanosa, Both. Cat. Bot. vol. iii. p. 291. t. 9. Sm. E. Bot. t. 2099. Ljjngb. Hyi. Ban. p. 160. t. 56. Billw. Conf. t. E. Ag. Syst. Alg. p. 112. Grev. Fl. Edin. p. 316. Han. in Hook. Br. Ft. vol. ii.
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Keywords: ., bookauthorharveywilliamhwilliam, bookcentury1800, bookdecade1840
