Phycologia australica; or, A history of Australian sea weeds ..and a synopsis of all known Australian Algae .. . ngly ramulose. Again, in the Tamar, Tasmania, the frondattains still larger dimensions, and the branches are more at-tenuated. Among hundreds of specimens examined, there is acomplete gradation in these respects. The form of the recepta-cle and its proportion to the pedicel are also very variable inthis species. Our figure represents the average proportionsand shape; but in some of the attenuated, deep-water speci-mens, the length of receptacle is doubled ; in others it varies onthe
Phycologia australica; or, A history of Australian sea weeds ..and a synopsis of all known Australian Algae .. . ngly ramulose. Again, in the Tamar, Tasmania, the frondattains still larger dimensions, and the branches are more at-tenuated. Among hundreds of specimens examined, there is acomplete gradation in these respects. The form of the recepta-cle and its proportion to the pedicel are also very variable inthis species. Our figure represents the average proportionsand shape; but in some of the attenuated, deep-water speci-mens, the length of receptacle is doubled ; in others it varies onthe same frond. Search should be made by Tasmanian collectors for the , J. Ag., formerly found by Mr. Gunn, at Georgetown,and known by the very great length of its receptacles,— six oreight lines, or nearly an inch long, nearly entirely cylindrical, andas thick as sparrows-quill. (See J. Ag. Sp. Alg. v. 1. p. 175.) Fig. 1. Sporochnus comosus,—the natural size. 2. Fragment, with thereceptacles, in situ,—magnified. 3. Some of the sporiferous filaments of the re-ceptacle,—highly magnified. rxf.
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Keywords: ., bookauthorharveywi, bookcentury1800, bookdecade1850, bookyear1859
