The common seaweeds of the British coast and Channel Islands : with some insight into the microscipic beauties of their structure and fructification / by Louisa Lane Clarke.

  • Clarke, Louisa Lane.
Date:
[1865?]
Catalogue details

Licence: Public Domain Mark

Credit: The common seaweeds of the British coast and Channel Islands : with some insight into the microscipic beauties of their structure and fructification / by Louisa Lane Clarke. Source: Wellcome Collection.

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    Kallymexia—Frond expanded, leaf-like, fleshy, membranous, solid, of dense structure. Irid..ea—Frond expanded, leaf-like, thick, leathery, and fleshy. Catexella—Frond filiform, branched, constricted into oblong articulations. Creoria—Frond crustaceous, skin-like. Naccaria—Frond filiform, solid, cellular, the ramuli only composed of radiating free filaments. Gloiosiphoxia—Frond tubular, hollow, the walls of the tube composed of radiating filaments. ]Se:maleox—Frond filiform, solid, elastic, filamentous; com- posed externally of free filaments, and internally of closely- packed filaments. Dudresxaia—Frond filiform, solid, gelatinous, filamentous ; composed internally of interlacing filaments, forming a lax net-work; outer filaments free. Crouaxia—Frond filiform, consisting of a jointed filament, whorled at the joints, with minute gelatinous ramuli. GENERA OF THE GERAMIUM TRIBE. Ptilota—Frond compressed, inarticulate, distichous, pecti- nato-pinnate; favellss stalked, involucrate. aIicrocladta—Frond filiform, inarticulate, dichotomous; fa- vellse sessile. Ceramium—Frond filiform, articulate, dichotomous; tetra- spores mostly immersed. Spyridia—Frond filiform, inarticulate, the branches clothed with minute bristle-like articulate ramuli; tetraspores sessile on the ramuli. Griffithsia—Frond articulated, dichotomous, or clothed with whorleddichotomous ramuli, rose red; favellx involucrated, sessile, or stalked; tetraspores sessile on whorled ramuli. Wraxgeeia—Frond articulated, pinnate; tetraspores scat- tered in the ramuli. Seirospora—Frond articulated; tetrasporesinbead-likestrings Callithamxiox—Frond, at least the branches and ramuli, articulated, mostly pinnated; favellss sessile; tetraspores sessile or stalked, scattered.