Phycologia Britannica, Or, A History of British Sea-weeds: Melanospermeś, or Olive Sea-weeds (Synopsis no. 1-97)

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Reeve and Benham, 1851 - Marine algae
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Page x - Naccaria. Frond filiform, solid, cellular ; the ramuli only composed of radiating free filaments.
Page vii - Rigid, articulated, or crustaceous, mostly calcareous seaweeds, purple when recent, fading on exposure to milk-white. Composed of closely-packed elongated cells or filaments, in which carbonate of lime is deposited in an organised form. Tetraspores tufted, contained in ovate or spherical conceptacles. Ceramidia furnished with a terminal pore. The following general remarks on this family are taken from Dr. Harvey's work : — The root, where this organ is manifested, is an expanded crustaceous disc,...
Page x - Rose-red or purple seaweeds, with a filiform frond, consisting of an articulated, branching filament, composed of a single string of cylindrical cells, sometimes coated with a stratum of smaller polygonal cells.

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