KONGL. SV. VET. AKADEMIENS HANDLINGAE. BAND. 20. N:0 5. 3 61 



Localities: The Greenland Sea: at two or three places on the north and west 

 coasts of Spitzbergen. 



Kallymenia septeratrionalis nob. 



Pronde callo radicali miuuto affixa, stipite brevissimo, eraraoso, lamina vulgo iisque a priino initio orbi- 

 culaii vel late renifoi-mi, longitudine circa 6 cm. attingente subcarnoso-raembranaoea, orassitudine 100 /(, in 

 statu adultiore parce vage lobata, lobis variae formfe at semper basi latis, numqvam foliola propria stipite suiTulta 

 coustituentibus, margine integerrimo vel leviter oreiiulato; colore planta Sarcopliyllidi eduli simillima, saiiguiiieo- 

 purpurea. Tab. 14, fig. 4 — -6. 



Syn. Halyraenia rosacea Kjellm. Spetsb. Thall. 1, p. 24; ex parte. 

 Kallymenia renifovmis Croall, Fl. Diso. p. 469 (?). 



» » Kjellm. Algenv. Murm. Meer. p. 20. 



') " Kleen, Nordl. Alg. p. 18. 



Bemärk on the species. It seeras to me probable in the highest degree that the 

 species of Kallymenia occurring in the Polar Sea, called K. reniformis by Kleen and 

 formerly even by rnyself, is not identica.1 with the species of this name occurring farther 

 to the south, but rather a northern species differing from it in the shape of the frond, 

 in colour and in consistency. 



The arctic form does not apparently attain any considerable size. The largest 

 specimen I have seen is one taken by Kleen at Nordlanden and figured by rae in pl. 

 14 fig. 5. It is 6 cm. in length by 7 cm. in breadth. Individnals almost as large as 

 this have been collected by me on the west coast of Novaya Zemlya and at Spitzbergen. 

 These appear to be full groAvn. The stipe is always very short, sometimes impercep- 

 tible. The lamina, even when very young, that is to say, when it has a length of 1 — 2 

 mm., is circular or reniform, rarely broadly ob-ovate; fig. 4. It becomes lobate only 

 after having attained a more considerable size. The lobes are of different shape and 

 size, but yet always have a broad base, being never sharply divided from the main 

 lamina, as is the case in Kallymenia reniformis. It is distinguished from this species 

 at first sight by means of its colour, which is the same as in Sarcophyllis edulis, in 

 young individuals possibly somewhat darker than in this alga. This tone of colour is 

 generally designed as »sanguineo-purpureus». According to J. G. Agardh the thallus 

 of K. reniformis is »pulchre coccineus», Avhich seeras to me to Ije the colour also of the 

 figure of the species in Haevet's Ph3'c. Brit., although it is said in the description to 

 have the same colour as Sarcophyllis edulis i. e. blood-red. Even iu respect to consi- 

 stency the northern species appears to differ from the more southern, the former being 

 nierabranaceous, slightly fleshy. K. reniformis is stated to be »gelatinoso-carnosa» (J. G. 

 Ag. Spec. Alg.), »gelatinoso-membranacea» (J. G. Ag. Epicr.), »thickisk-membranaceous» 

 (Harv. Phyc. Brit.) etc; accordingly A", reniformis is in general thicker and more fleshy 

 than K. septemtrionalis. In this species the central layer of the frond is feebly deve- 

 loped. The cells are few, the mäss of gelatinous substance is considerable, the middle 

 layer is distinct, more strongly developed in younger than in older individuals. The 



K. Vet. Akad. Handl. Band. 20. K":o 6. ^1 



