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 . sa,belong, in the copies of her valuable work which I have examinedand, I suspect, in all the others, to our B. riparium. It is amore slender plant than C. tortuosa, of a paler colour, and,above all, distinguished by the root-like fibres which issue atintervals, from the articulations ; and the presence of whichhas induced Kiitzing to place it in a separate genus. I am not
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 . sa,belong, in the copies of her valuable work which I have examinedand, I suspect, in all the others, to our B. riparium. It is amore slender plant than C. tortuosa, of a paler colour, and,above all, distinguished by the root-like fibres which issue atintervals, from the articulations ; and the presence of whichhas induced Kiitzing to place it in a separate genus. I am not certain whether all the synonyms quoted abovebelong to this, or to several closely allied species. Accordingto Prof. Kiitzing there are three or four distinct plants con-founded under the Conferva riparia of authors, a point todetermine which I have not sufficient data at hand. As regardsthe specimen now figured, it is at least certain that ours is theplant of Dillwyn, our figure having been prepared from one ofthe original specimens collected by Miss Hutchins. Fig. 1. Rhizoclonium riparium ; stratum,—of the natural size. 2. Filamentsfrom the same; magnified, 3. A portion :—more highly magnified. I CCLa A. V JSer. Chlorosperme/e. Pam. Confervea. Plate CCCLIV. A. CONFERVA ARENICOLA, Bert Gen. Char. Filaments green, attached or floating, unbranched, composedof a single series of cells or articulations. Fruit, aggregated gra-nules or zoospores, contained in the articulations, and having, atsome period, a proper cdiary motion. Conferva (Plin.),—fromconferrummare, to consolidate; because some of the species wereused by the ancients for binding up fractured limbs. Conferva arenicola; threads soft, simple, extremely fine, matted, some-what crisped, at first uniform pale green, at length distinctly jointed;articulations once and half as long as broad, dotted; interstices pel-lucid.— arenicola, Berk. Gl. Br. Jig. p. 36. t. 13. f. 3. Harv. Man. p. 128. ed
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Keywords: ., bookauthorharveywilliamhwilliam, bookcentury1800, bookdecade1840
