26 



magsalik (K. Rosenv. Deux. Mém. 1. c.) on the eastern coast ot 

 Greenland. In Kru use's collection only a small, young specimen 

 was found which I have referred to this species, although with 

 some doubt. The stipe was almost solid, but the middle layer 

 in several places consisted of a very loose tissue, and small 

 cavities were already formed here and there ; thus the stipe is 

 evidently growing hollow. Muciparous canals abundant in the 

 stipe, in a peripherical circle. Sterile, gathered in June, in a 

 depth of 3 — 30 fathoms. Kruuse 's specimen also was gathered 

 in Angmagsalik. 



As to the occurrence of this species in East Greenland, 

 north of Angmagsalik C. Kruuse has given me the following 

 information: uLamitiaria longicrwis has not been gathered nor 

 seen by me anywhere (north of Angmagsalik) in East Greenland. 

 In spite of numerous examinations I never found a Laminaria 

 with hollow or inflated stipe, neither have I seen any such 

 drifting or driven ashore, though otherwise it is not unfre- 

 quently seen drifting about the territory of its distribution». 



Gr. or. : Tasiusak. 



46. L. groenlandica K. Kosenv. Grl. Havalg. p. 847, Deux. 

 Mém. p. 53. 



The species is abundantly represented in the collection, 

 and all the specimens are typical , fully agreeing with the 

 description (K. Rosenv. Grl. Havalg. 1. c). The following meas- 

 ures show^ the size of the specimens, in centimeters. 



stipe 



{ length 



Lam. c 



\ greatest breadth 



f length 



Sorus < 



\ greatest breadth 



*) In this case the breadth of the lamina vas reduced 12,5°/o by the 

 drying process. 



