or 
KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 5) 
Gen. Urospora ARrEscu. 
Obs; Phyc: 1, p. 15. 
Urospora Penicilliformis (Roru) Arescu. 
Obs. Phye. 2, p. 4. Conferva penicilliformis Rorn, Cat. Bot. 3, p. 271. 
Descr. Urospora penicilliformis Argscn. |. e. 
Fig. Lyngbya Carmichelii Harv. Phyc. Brit. t. 186, A. 
» Cutlerize » » » ft. 336. 
» speciosa » » D8 vis SO. b: 
Conferva Youngeana » » » tt. 328. 
Exsicce. Conferva speciosa Arescu. Alg. Scand. exsice. N:o 132, 1865. 
» hormoides » » » » y 11335186: 
Hormiscia flacca » » » » » 342. 
Urospora mirabilis » » » » » 340. 
» penicilliformis Wrrrr. et Norpstr. Alg. exsice. N:o 417, 418. 
Syn. Conferva hormoides J. G. Ac. Spetsb. Alg. Progr. p. 2; Bidr. p. 11. 
» » LinpBu. Bot. Not. p. 158. 
» » Wirrr. in Heugl. Reise, p. 284. 
» Youngeana CroaLi, Fl. Dise. p. 461. 
Lyngbya Carmichelii Croan1, |. c. p. 461. 
» flacca » » » 462. 
» speciosa » » »  » 
Urospora mirabilis Kuren, Nordl. Alg. p. 46. 
» penicilliformis Kyetium. Spetsb. Thall. 2, p. 55;  Algenv. Murm. Meer. p. 56. 
Habitat. This alga is litoral, usually growing on stones and rocks above tide- 
mark, sometimes in rock-pools within or somewhat above the litoral zone. It grows 
gregarious in considerable masses both on exposed and sheltered coasts, but exposed 
localities are preferred by it. I have found specimens with zoospores at Spitzbergen 
in the middle of Jyly, at Novaya Zemlya at the end of Jyly, on the north coast of 
Norway in August. 
Geogr. Distrib. It is probably circumpolar. However it has not been found as 
yet in the Siberian and American Arctic Seas. Its maximum of frequency is on the 
north coast of Norway. The most northern place where it has been taken is Treuren- 
berg Bay on the north coast of Spitzbergen, Lat. N. 79° 56’. 
Localities: The Norwegian Polar Sea: Nordlanden, common; Finmarken, local, but 
abundant at Maasd. 
The Greenland Sea: the north-east and south-east coasts of Spitzbergen, local and 
scarce. 
The Kara Sea: Kjellman’s Iles, scarce. 
Baffin Bay: the coast of Greenland at Frideriksdal, Nanortalik, Sermilik, Julianes- 
haab, Godthaab. Besides, it has been found floating in the sea at several places off 
the coast. (Cp. Croat 1}. c. and Dickie, Alg. Sutherl. 1, p. 143). 
