A REVISED LIST OF CORALLINE. 25 



be absolutely legitimate. But the leduction of the Canadian 

 species to the formas of Cheilospori(m, tuberculosum, as has been 

 done by Setchell and Gardner, is by no means acceptable. 

 The latter species undoubtedly has variable characters, apparently 

 fluctuating from one to the other ; while the others have, not 

 whithout reason, been described by many systematists for a long 

 time as distinct species. 



In my former paper on Corallmce of Port Renfrew I had 

 doubt regarding Amp. epipJilegmoides J. Ag. But as I had not 

 been fortunate enough to see the original specimen, I placed it 

 provisionally under Gheil. {Amphiroa) tuberculosum. Madam 

 Weber,^^ after examining the specimen in the British Museum, 

 thinks it very likely that it is only a form of latter species, as 

 I had supposed. Strengthened by her remark, I here reduce the 

 species in question as synonymous with Clieil. tuber cidosum. 



Corallina palmata Ellis et Sol. was transfered to Arthro- 

 cardia by Areschoug. But I had no less doubt regarding his 

 opinion in doing so when I compared the definition of Arthro- 

 cardia pahnata Aresch. with the description of Corallina palmala 

 Ellis et Sol. given by various authors. Lately I was fortunate 

 enough through the kindness of Madam Weber van Bosse to 

 study the specimens, labelled " Arthrocardia px^^lmata Aresch." 

 and " Corallina pahnata Ellis et Sol.," which were kept in the 

 Herbarium of Suringar. After careful examination of the speci- 

 mens, and referring to almost all of the literature concerning 

 both species, I have come to the conclusion that the species 

 Arthrocardia palmata Aresch. is quite different from Corallina 

 palmala Ellis et Sol. Suringar's specimen of Arth. palmata 

 is sterile. But it accords very well with the description of Arth. 



1) Coral. Siboga Exp. p. 106. 



