1925] Setchell-Gardrwr: Mehmophyceae 403 



Kjellman, Skand. Ect. och. Tilopt., 1872, p. 99, Alg. Arctic Sea, 

 1883, p. 281; Setchell and Gardner, Alg. N.W. Amer., 1903, p. 235; 

 Saunders, Phye. Mem.. 1898, p. 156, Alg. Harriman Exp., 1901, p. 418. 

 Confi rva 1 iff oral is Linnaeus, Spec. PI. (ed. 1), 1753, p. 1165 (in part) ; 

 Dilhvyn. Brit. Conf., 1803, p. 70, pi. 31 (in part) ; C. A. Agardh, Syn. 

 Alg. Scand., 1817, p. 65 (in part). Spec. Alg., vol. 2, 1828, p. 40 (in 

 part). Ectocarpus littoral is 8 protensus Lyngbye, Ilydrophyt. Dan., 

 1819, p. 131, pi. 42, C. 



We have quoted both Linnaeus and Kjellman as authorities for the 

 name of this species, with a full sense of the uncertainty existing con- 

 cerning the real sponsorship. The Conferva UttorcAis of Linnaeus, so 

 far as the original founding of the species is concerned, is most uncer- 

 tain since no definite type specimen is to be found. According to C. A. 

 Agardh (1828, pp. 40, 41), Linnaeus seems to have changed his 

 opinion as the years vent on, at certain times having in mind appar- 

 ently one of the Ectocarpaceae, and at other times a member of the 

 Khodomelaceae. In the first edition of the Species Plantarum (1753, 

 p. 1165). Linnaeus quotes the first edition of the Flora Suecica (1745, 

 p. 371) and a certain figure of Dillenius (1741, pi. 4, fig. 19). In the 

 Flora Suecica, however, he quotes a figure of Dillenius (1741, pi. 3, 

 fig. 13) to which he did not refer especially in 1753. In the second edi- 

 tion of the Species Plantarum (1763. p. 1635), Linnaeus again excludes 

 the Dillenius figure of plate 3, figure 13, but. later, in the second edi- 

 tion of the Flora Suecica (1755, p. 436), he again quotes only figure 13 

 of plate 3 repeating the diagnosis of the species published in 1753. 

 The Ectocarpaceous view of the Linnaean species seems to have been 

 general among the earlier phycologists, but, even thus, it remained a 

 mixture of species. Dillwyn (1803, pi. 31) shows under figure C a 

 plant seemingly with seriate gametangia, while figure D has what seems 

 to be a projecting solitary zoosporangium. The idea of C. A. Agardh 

 1817, p. 65) is also of a mixture, as was that of Lyngbye (1819, 

 pp. 130, 131, pi. 42) as well. By the time the first edition of Harvey's 

 Manual (1841) was issued, the present idea of the species had begun to 

 assume form as to the seriate gametangia being characteristic of it. 

 While it is. therefore, fairly certain that Linnaeus may have included 

 the species now usually assigned under his specific name, but that he 

 had no distinctly concrete conception of the same, it seems best to fol- 

 low custom and not only to adopt the specific name littoral is but also to 

 continue to cite Linnaeus as the author of it. We have quoted Kjell- 

 man as authority for the binomial, although, in 1828, Bory distinctly 

 cited the Conferva litforalis L. as the type of Pylaidla. He did not 



