527 



water runs into the sen, and sometimes in rock-pools containing 

 stagnant water polluted by lish remains, etc. 



Found hitherto only on Kalso: Husum ! ; and on Sir.: Tinganæs 

 in Thorshavn (!). 



HYPHEOTHRIX Kutz. 



211. Hypheotrix spec. 1 . 



According lo .lolis. Schmidt very slender piants belonging 



to this genus occurred frequently in the galherings. 



LYNGBYA C. Ag. 



212. L. lutea Gomont 1 . Monographies des Oscillariées, p. 161. 



Found between tide-marks on fairly exposed coast in October. 



Found hitherto only on Vid.: Vedvig (H. J. ; and on Str. : Thors- 

 havn (H.J.). 



MIGROCOLEUS Desmaziéres. 



213. M. tenerrimus Gomont 1 . Monographies des Oscillariées, p.93. 

 Found only once in November at Kvannesund (H. .1.). 



Order RIVULARIACEAE. 

 COLOTHRIX Agardh. 



214. C. aeruginea (Kutz.) Thur 1 . Johs. Schmidt, Danm. blaagr. 

 Alg., p. 110 (390). 



F'ound near high-water mark, appears to be very rare along 

 the coasts of the Færoes. 



Found hitherto only on Str.: In the oeighbourhood of Thors- 

 havn (!); Syd: Trangisvaagfjord (!). 



215. C. scopulorum (Web. et Mohr.) Ag. emend. Johs. Schmidt 1 , 

 Danm. blaagr. Alg., p. 110 (300). 



Found near extreme high-water mark, frequently at a eonsider- 

 able height above sea-level, e. g. near Bosdalafos where il occurred 

 at a height of 80 feet; it formed herc in association with other 

 blue-green algæ, Lichens, etc. dark-brown, almosl black crusts on 

 the roek. It has been found botb in the spring, summer and 

 autumn months, but generally only poorly developed specimens 

 were met with, and Johs. Schmidt tells me thai this is the ease 



1 Determ. Joh^. Schmidt 



