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 . is, at first, a closed sac, which soon bursts ;it then exhibits a torn membranous frond, of a much more deli-cate substance than U. latissima, and of a paler colour; and indrying, it closely adheres to paper. Lightfoot and succeeding authors tell us that U. latissima,under the name of Oyster-green, or Green-SloJce, is brought totable both in England and Scotland, used in th
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 . is, at first, a closed sac, which soon bursts ;it then exhibits a torn membranous frond, of a much more deli-cate substance than U. latissima, and of a paler colour; and indrying, it closely adheres to paper. Lightfoot and succeeding authors tell us that U. latissima,under the name of Oyster-green, or Green-SloJce, is brought totable both in England and Scotland, used in the same manneras Porphyra laciniata, the true Laver or Stoke. I have neverseen it so used. Lightfoot further says that the Icelandersascribe to it an anodyne virtue, and bind the leaves about thefront and temples to assuage the head-ache in fevers, and to pro-cure sleep; but the use of it in these intentions is supported byno good authority.—Fl. Scot. p. 971-2. If it have any effect insuch cases, it probably arises from the cooling influence of themoisture retained in the leaves. Fig. 1. Ulva latissima ; a frond:—of the natural size. 2. Portion of thesurface. 3. Section of the frond :—highly magnified. TUUCCHM.
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Keywords: ., bookauthorharveywilliamhwilliam, bookcentury1800, bookdecade1840
