KONGL. SV. VET, AKADEMIENS HANDLINGAR. BAND 20. N:0 5. 153 



J. G. Agardh. From this fact we may conclude that late autumn is its proper period 

 for producing carpospores. I have never had the opportunity of examining the plant 

 at this time. In my collections from the west coast of Novaya Zemlya there is a 

 specimen with almost mature' sporocarps taken in July. These are figured in the plate 

 quoted above. Tetrasporangia are unknown. 



Geogr. Distrib. The present species is a purely arctic alga very widely distributed 

 within the arctic region. It is not known from the northern Atlantic, but in the nor- 

 thern part of the Pacific I have collected specimens of it. With the exception of the 

 American Arctic Sea, it is known to me from all larger stretches of the Arctic Sea 

 that have been investigated. Its maximum of frequency is in the eastern part of the 

 Siberian Sea. Its northernmost locality, as far as is ascertained at present, is Musselbay 

 on the north coast of Spitzbergen Lat. N. 79° 53'. 



Localities: The Greenland Sea: the north and west coasts of Spitzbergen, local 

 and scarce. 



The Murman Sea: Cape Kanin according to specimens in Ruprecht's herbai'ium ^); 

 the west coast of Novaya Zemlya and Waygats from Matotshin Shar to Jugor Shar, 

 common and pretty abundant. 



The Kara Sea: Uddebay on the east coast of Novaya Zemlya, scarce. 



The Siberian Sea: Irkaypi, Koljutshin Isle, Pitlekay, Tjakpa; at Pitlekay plentiful. 



Baffin Bay: Cumberland Sound. I have supposed that the alga described by 

 Dickie from here under the name of K. Pennyi is -S. arctica, at least partly. The de- 

 scription accords perfectly with this, but it is too incomplete to afford full certainty. 



In the above-mentioned collection of algae made by Moravian missionaries there 

 were also found a couple of specimens of Sarco2)hyllis arctica. These had come either 

 from the west coast of Greenland or from Labrador. 



Gen. Halosaccion (Ktfxz.) Rupr. 



Alg. Och. p. 292; KiJTZ. Phyc. gener. p. 439: char. mat. 



Halosaccion ramentaceum (L.) J. G. Ag. 



Spec. Alg. 2, p. 358. Pucus ramentaceus. L. Syst. Nat. 2, p. 718, sec. Tukn. Hist. Puc. 3, p. 33. 



f. robusta nob. 



Planta annotina solitaria, thalli parte cauloidea simplici, prolificationes simplices.. raro furcatas, distantes, 

 apicem versus crebriores, usque pedales, diametro 0,5 — 2 mm., tetrasporangiis evolutis dejiciendas emittente. 

 Fig. Halosaccion ramentaceum f. robusta tab. nostra 12, fig. 4 et tab. 13, fig. 1 — 2. 



Syn. Fucus graminifolius Lepech. Comment. Petrop. p. 481. 



1) I am under the greatest obligation to Dr Chr. Gobi for having had the advantage of examining these 

 specimens. 



K. Vet. Akad. Handl, B. 20. Jr:o 6. •^^ 



