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 . imperfect plants habitatmay, perhaps, be admitted as a character of no ordinary im-portance, and if we allow it in the present case, there can be nodifficulty in the matter; for C. latevirens is found in the opensea, beyond all influence of fresh water, and C. glomerata in rillsand rivers remote from the sea, and often high among the , therefore, and as far
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 . imperfect plants habitatmay, perhaps, be admitted as a character of no ordinary im-portance, and if we allow it in the present case, there can be nodifficulty in the matter; for C. latevirens is found in the opensea, beyond all influence of fresh water, and C. glomerata in rillsand rivers remote from the sea, and often high among the , therefore, and as far as collectors are concerned, theplants may be allowed to be distinct. But when we come tospeak of the physical distribution of species, it should be bornein mind that these marine and fresh-water plants are, perhaps,different states of the same thing. A similar instance of an Algagrowing in the open sea and in fresh water, occurs in Bangiafusco pmymrca, which is often found in fresh-water streams invery inland situations; but instances of such indifference inhabitat are very unusual. Fig. 1. Cladophora latevirens :—of the natural size. 2. Part of a branch3. Earauli:—more or less highly magnified. Plate, CCCLlm. , Ser. CiilorospermejE. ]?am. Confervcce. Plate FLEXUOSA, Griff. Gen. Char. Filaments green, attached, uniform, branched, composed ofa single series of cells or articulations. Fruit, aggregated granulesor zoospores, contained in the articulations, having, at some period,a proper ciliary motion. Cladophora (Kiitz.),—from kAoSo?, a branch,and 4>opeu>, to dear. Cladophora Jiexuosa j filaments capillary, flexuous or angularly bent,pale green, much branched, the branches of unequal length and(comparatively) but little divided, set with curved secondary or ter-tiary branches, which are pectinated with secund, short, simple,spreading ramuli; articulations of the branches thrice or four times,of the ramuli twice as long as broad. Cladophora flexuo
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Keywords: ., bookauthorharveywilliamhwilliam, bookcentury1800, bookdecade1840
