24 



41. A. esculenta (L.) Grev. var. pinnata (Gunn.) Kjellm. Hand- 

 bok p. 29, A. flagellaris K. Rosenv. Deux. Mém. p. 49. 



in the collection 1 have had for examination two somewhat 

 badly conserved specimens are found which differ from A. Pylaii 

 by the equilateral transverse section of the costa. Their sizes 

 measured in centimeters are as follows : 



Total length 



The lamina 



Stipe 



Stipe 

 below 

 rachis 



Sporophylls 



Length 



Breadth 



Length 



Breadth 



112 

 132 



100 

 119 



20 

 36 



12 



13 



3 

 5 



27 

 30 



5,2 

 5 



The base of the lamina is broadly cuneate. The transverse 

 section of the costa ^ is angular, but not rectangular, the two 

 longer sides are always straight and parallel. The sporophylls 

 are dense and not placed in a furrow. The stipe is terete and 

 short, especially the part below the rachis is exceedingly short. 

 In the inferior portion of the rachis scars of fallen sporophylls 

 are visible. In one specimen the rachis is considerably thicker 

 than the inferior portion of the stipe. For the present I refer 

 these specimens with some doubt to A. escule?ita v. pinnata, 

 as a form with short stipe. Any final determination of to which 

 species these plants belong must be put off till some better 

 material will be at our disposal. 



Gr. or.: Tasiusak. 



Geogr. distribution: Spitsbergen, Iceland, The Færoes, Norway. 



Agariim (Bory) Post, et Rupr. 



42. A. Tui'Dei'i Post, et Rupr., K. Rosenv. Grl. Havalg. p. 841, 

 Deux. Mém. p. 50. 



All the specimens 1 have had for examination are small ; the 

 stipe of the largest one is 15 cm. long, the lamina 50 cm. The 

 species was gathered in May and June in a depth of 3 — 9 

 fathoms. According to a report from Kruuse it was found — 



