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 . m) is limitedto a single specimen collected by Capt. Carmichael, and nowrpreserved in the Dublin University Herbarium. From-thisspecimen the figure has been taken. It will be seen that whilethe external habit is peculiar, the microscopic characters are verysimilar to those of E. clathrata, E. erecta, and E. Greville lays stress on the rigidity of substance, whi
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 . m) is limitedto a single specimen collected by Capt. Carmichael, and nowrpreserved in the Dublin University Herbarium. From-thisspecimen the figure has been taken. It will be seen that whilethe external habit is peculiar, the microscopic characters are verysimilar to those of E. clathrata, E. erecta, and E. Greville lays stress on the rigidity of substance, which isvery observable in the dry state at least. The branches are of larger diameter than is common in E. clathrata, but this is acharacter of little moment in this genus, and the very palecolour may arise from the peculiar circumstance under which theplant grew :—as, if the specimens were collected in a shallowpool near high-water mark they would assuredly be pale. Insuch circumstances any species of the genus would be equallybleached. Fig. 1. Enteromobpha LlNKIANA:—the natural size. 2. Part of a branchand ramuli:—magnified. 3. Small fragment of the membrane, with fertilecells :—highly magnified. ffat, 1////. Ser. ChlorospermejE. Fam. Ulvacea. Plate ERECTA, Hook. Gen. Char. Frond tubular, membranaceous, of a green colour and reticu-lated structure. Fructification ; granules, commonly in fours, con-tained in the cellules of the frond. Enteromorpha—from tvrtpov,an cut mi/, and \Lop$r),form, or appearance. Iatkuomorpha erecta; frond cylindrical, filiform, slender; branches erect,opposite or alternate, all attenuated to a fine point; ramuli capillary,erecto-patent; reticulations rectangular, nearly square, arranged inmany longitudinal lines. Enteromorpha erecta, Hook. Br. Fl. vol. ii. p. 314. Wyalt. Alg. 1G6. Harv. Man. p. 175. Enteromorpha clathrata, /3. erecta, Grev. Alg. Brit. p. 181. Ilarv. in part 3. p. 242. ScYTOsirnoN erectu
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Keywords: ., bookauthorharveywilliamhwilliam, bookcentury1800, bookdecade1840
