KONGL. SV. VET. AKADEMIENS HANDLINGAE. BAND. 20. N:0 5. 105 



Melobesia macrocarpa Rosan. 

 Melob. p. 74. 



Descr. Melobesia macrocarpa Rosan, 1. c. 



Fig. » » » » t. 4, fig. 2 — 8 et 11—20. 



Syn. Nelobesia macrocarpa Kleen, Nordl. Alg. p. 11. 



Habitat. It has been found in the Polar Sea growing on Laminaria digitata within 

 the upper part of the sublitoral zone. Here it has ripe sporangia in July and August. 



Geogr. Distrih. It is known only from the Atlantic region of the Polar Sea, on 

 the coast of Norway. 



Locality: The Norwegian Polar Sea: Nordlanden. 



Melobesia Lejolisii Rosan. 

 Melob. p. 62. 



Descr. Melobesia Lejolisii Rosan. 1. c. 



Fig. » » » » tab. 1, fig. 1—12. 



Syn. Melobesia spec. Kjellm. Spelsb. Thall. 1, p. 4. (?) 



Habitat. It occurs fastened to Ptilota plumosa (and P. pectinata?) and accordingly 

 belongs to the sublitoral zone. I have seen specimens with conceptacles of sporangia 

 from Greenland, but I have no information as to the time of the year when they were taken. 



Geogr. Distrib. It is known with certainty from the arctic region of the Polar 

 Sea, and it may be supposed with pretty great certainty to occur also within the At- 

 lantic region of it. Besides this, its distribution is uncertain. I have seen specimens 

 from Greenland belonging surely to this species, and this may possibly be the case also 

 with those sterile specimens which I found once on the north coast of Spitzbergen. 



Localities: The Greenland Sea: the northern coast of Spitzbergen (?). 



Baffin Bay: on the west coast of Greenland. 



Fam. RHODOMELACE^ J. G. Ao. 



Symb. p. 23; Spec. Alg. 2, p. 787. 



Gen. Odonthalia Lyngb. 



Hydr. Dan. p. 9. 



Odonthalia dentata (L.) Lyngb. 

 1. c. Pucus dentatus L. Mant, p. 35. 



Descr. Odonthalia dentata J. G. Ag. Spec. Alg. 2, p. 899, 



Fig. » » Harv. Phyc. Brit. t. 34. 



Exsicc. » » Aresch. Alg. Scand. exsicc. N;o 56. 



K. Vet. Akad. HHndl B. 20. N:o 5. '^^ 



