KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 167 
Gen. Gigartina (LAmMour.) J. G. Aa. 
Epicr. p. 189; Lamour. Ess. p. 134; char. mut. 
Gigartina mamillosa (Goop. et Woopw.) J. G. Aa. 
Alg. Med. p. 104. Fucus mamillosus Goov. et Woopw. Linn. Trans. 3, p. 174. 
Deser. Gigartina mamillosa J. G. AG. Epicr. p. 199. 
Fig. » » Hary. Phyc: Brit. +. 199; 
Exsice. » » Arescu. Ale. Seand. exsice. N:o 10. 
Syn. Fucus mamillosus SomMerer. Suppl. p. 183. 
» » We. Fl. Lapp. p. 496. 
Gigartina mamillosa KLEEN, Nordl. Alg. p. 18. 
Rhodymenia mamillosa AnescuH. Phyec. 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 gregarious 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 Gjesver near North Cape about Lat. N. 71°. 
Localities: The Norwegian Polar Sea: Nordlanden, common and plentiful; Fin- 
marken at Oxfjord, Maasé, Gjesver, and the southern coast of Magerd, pretty common 
and abundant. 
Baffin Bay: the west coast of Greenland, according to specimens in the herbarium 
of the Copenhagen Museum. 
Gen. Chondrus (Sracku.) J. G. Aa. 
Spec. Alg. 2, p. 244; Sracku. Ner. Brit. sec. J. G. Ac. |. ¢.; char. mut. 
Chondrus crispus (L.) Lyxes. 
Hydr. Dan. p. 15. Fucus crispus L. Mant. p. 134. 
Deser. Chondrus crispus J. G. Ac. Epicr. p. 178. 
Fig. » » Harv. Phyc. Brit. t. 63. 
Exsice. » » ArescH. Alg. Seand. exsice. N:o 156. 
Syn. Chondrus crispus ARescH. Phyc. Scand. p. 308. 
» » Keen, Nordl. Alg. p- 18. 
Fucus crispus Gunn. Fl. Norv. 2, p. 91. 
» » We. Fl. Lapp. p- 497. 
