KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 167 



Gen, Gigartina (Lamour.) J. G. Ag. 



Epicr. p. 189; Lamodk. Ess. p. 134; char. mut. 



Gigartina mamillosa (Good, et Woodw.) J. G. Ag. 



Alg. Med. p. 104. Pucus mamillosus Good, et Woodw. Linn. Trans. 3, p. 174. 



Descr. Gigartina mamillosa J. G. Ag. Epicr. p. 199. 

 JFig. « « Haiw. Phyc. Brit. t. 199. 



Esesicc. » » Aresch. Alg. Scand. exsicc. N:o 10. 



Syii. Pucus mamillosus Sommerf. Suppl. p. 183. 

 » Wg. pi. Lapp. p. 496. 



Gigartina mamillosa Kleen, Nordl. Alg. p. 18. 

 Rhodymenia mamillosa AiiEsoH. Phyc. Scand. p 296. 



Habitat. On the coast of Norway the plant is litoral, attached to rocks or stones 

 above low-water mark, or growing in rock-pools between tide-marks. It belongs chiefly 

 to the lower portion of the sublitoral zone and is almost exclusively pelagic. Most 

 often it occurs grejjarious in large masses. In the southern part of the Norwegian 

 Polar Sea it has been found with sporocarps in July and August, in the northern part 

 with young organs of that kind in the latter part of August. 



Geogr. Distrib. Known from the Norwegian Polar Sea and Baffin Bay. It has 

 probably its maximum of frequency within the former region. Its most northerly 

 certain locality is Gjesvasr near North Cape about Lat. N. 71°. 



Localities: The Norwegian Polar Sea: Nordlanden, common and plentiful; Fin- 

 marken at Oxfjord, Maaso, Gjesvser/and the southern coast of Magero, pretty common 

 and abundant. 



B'afjin Bay: the west coast of Greenland, according to specimens in the herbarium 

 of the Copenhagen Museum. 



Gen. Ohondrus (Stackh.) J. G. Ag. 



Spec. Alg. 2, p. 244; Stagkh. Ner. Brit. sec. J. G. Ag. 1. c; char. mut. 



Chondrus crisp us (L.) Lyngb. 

 Hydr. Dan. p. 15. Pucus crispus L. Mant. p. 134. 

 Descr. Chondrus crispus J. G. Ag. Epicr. p. 178. 

 Fig. » ■> Harv. Phyc. Brit. t. 63. 



Exsicc. » » Aresch. Alg. Scand. exsicc. N:o 166. 



Syn. Chondrus crispus Aresch. Phyc. Scand. p. 308. 

 » » KiEEN, Nordl. Alg. p. 18. 



Pucus crispus Gunn. PI. Norv. 2, p. 91. 

 « » Wg. pi. Lapp. p. 497. 



