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 . y plant. Of theoriginal I have, then, as yet seen no specimens, andthe plate having been engraved and printed I cannot hold itback for a more minute examination and consultation. I am,therefore, compelled to publish Mr. Ralfss plant as a novelty,and (if it be new) have great pleasure in bestowing his name upon it. The greater number of cells in the breadth of the
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 . y plant. Of theoriginal I have, then, as yet seen no specimens, andthe plate having been engraved and printed I cannot hold itback for a more minute examination and consultation. I am,therefore, compelled to publish Mr. Ralfss plant as a novelty,and (if it be new) have great pleasure in bestowing his name upon it. The greater number of cells in the breadth of thefrond, and the presence of occasional short ramuli, would seemto be the characters by which E. Balfsii is to be known fromthe true I have no opportunity at present (I writethese lines on the shores of America) of examining other speci-mens, of consulting herbaria, or of communicating with moreexperienced botanists, and must consequently defer till a futuretime entering more fully into the distinctive characters of thespecies now proposed. Fig. 1. Tuft of Enteromorpha Ralfsii:—t/ie natural size. 2. Small frag-ments of different filaments. 3. A transverse section of a filament:—bothmagnified. Ilah CLXH. Ser. ChlorospermejB. Earn. Ulvacea. Plate CLXXI. ULVA LATISSIMA, Linn. Gen. Char. Frond membranaceous, green, expanded, piano, (in somecases saccate when young,) composed of irregular cells. Fructifica-tion ; granules, often arranged in fours, scattered over the whole ,—supposed to be from Ul, water, in Celtic. Ulva latissima; frond broadly-ovate or oblong, flat, of a full green colour. Ulva latissima, Linn. FL Snec. p. 433. Ag. Sp. Jig. vol. i. p. 407. p. 188. Grev. Alg. Brit. p. 171. Book. Br. M. vol. ii. p. , Alg. Damn. no. 33. Harv. in Marl,-. Fl. Hib. part 3. p. Man. p. 170. /. Ag. Alg. Medit. p. 17. Kiitz. Phyc. Gen. p. 296Mont. Fl. Alg. p. 149. Eiull. Zrd Suppl. p. 19. Ulva lactuca, Sni. E. Bot. t. 1551. {not of Linn.)
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Keywords: ., bookauthorharveywilliamhwilliam, bookcentury1800, bookdecade1840
