132 KJELLMAN, THE ALGH OF THE ARCTIC SEA. 
Geogr. Distrib. It is known only from Baftin Bay along the south and south-west 
coast of Greenland. 
Localities: Baffin Bay: Julianeshaab Lat. N. 60° 35', the only locality recorded 
with certainty. In the collection from Greenland mentioned above, there is a specimen 
of the plant called by Lynesyr Gigartina Fabriciana, which I believe I have been able 
to identify with D. rostrata. According to the label affixed, it has been taken at Nen- 
nese in Greenland by J. Vaut. 
In a collection of algw, brought together by the Moravian mission, which by the 
kind intercession of Prof. Tu. M. Frirs I have had the advantage of examining, there 
were to be found some individuals of D. rostrata; but the locality of their growth 
was not recorded. It is certainly most probable that they had been collected on the 
west coast of Greenland, but it is possible that they had come from Labrador. 
Delesseria Berii Rupr. 
Alg. Och. p. 239. 
Descr. Delesseria Berti J. G. Ac. Spec. Alg. 2, p. 685. 
» »  KJELLM. Spetsb. Thall. 1, p. 12. 
Syn. Delesseria Berii J. G. Ac. Spetsb. Alg. Progr. p. 3; Till. p. 11. 
» » Gost, Algenfl. Weiss. Meer. p. 31. 
» »  Kgeuum. |. ¢.; Algenv. Murm. Meer. p. 13. 
» » Rupr. 1. c. 
Fucus clavellosus Scorgssy, Account 1, p. 132 (?) 
»  forsan nova spec. prope alatum? R. Br. in Scorussy, |. c. 1, App. 5. 
Rhodymenia Berii Post. et Rupr. Ill. Alg. p. II. 
» »  Nyl. et Sel. Herb. Fenn. p. 74. 
Remark on the synonymy. It can now no more be decided with certainty whether 
the two synonyms taken from the lists of algw in Scoreby’s Account are really to be 
referred to the present species. But it is not impossible, I think, that this may indeed 
be the case *). 
Remark on the species. The group Cryptoneura in the genus Delesseria comprises, 
besides D. Jiirgensii, which is surely independent, four other species so closely similar 
to one another, that many algologists would certainly feel inclined to abandon J. G. 
AGARDH'S view and to contest their right of being regarded as separate species. These 
species are D. Bervi, D. angustissima, the D. rostrata mentioned before, and D. corym- 
bosa. After having examined these species, which are very scarce in collections, as 
carefully as possible, I must certainly admit, on the one hand, that they approach 
very closely to one auother, besides according nearly with D. alata, but on the other 
hand there are indeed to be observed differences between them, which appear constant, 
both in structure and in the branching of the frond and the position of the reproduc- 
tive organs. On this ground I think it right to embrace the opinion of AGArpu that 
') I remark here that the editor of R. Brown’s Vermischte Schrifter, Dr. E. Meyer, does Scoresby an injustice 
in alleging that he has not declared that it is R. Brown who has furnished the list of alge inserted in 
Appendix V to ScorssBy’s work. Scoressy states this expressly in the text Vol. 1. p. 148. 
