527 
water runs into the sea, and sometimes in rock-pools containing 
stagnant water polluted by fish remains, etc. 
Found hitherto only on Kalso: Husum (!); and on Str.: Tinganaes 
in Thorshavn (!). 
HYPHEOTHRIX Kiitz, 
211. Hypheotrix spec. 1 . 
According to Johs. Schmidt very slender plants belonging 
to this genus occurred frequently in the gatherings. 
LYNGBYA G. Ag. 
212. L. !utea Gomont 1 . Monographies des Oscillariees, 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.). 
MICROGOLEUS Desmazieres. 
213. M. tenerrimus Gomont 1 . Monographies des Oscillariees, p.93. 
Found only once in November at Kvannesund (H. J.). 
Order RIVULARIACEAE. 
COLOTHRIX Agardh. 
214. C. aeruginea (Kiitz.) Tliur 1 . Johs. Schmidt, Damn, blaagr. 
Alg., p. 110 (390). 
Found near high-water mark, appears to be very rare along 
the coasts of the Faeroes. 
Found hitherto only on Str.: In the neighbourhood of Thors¬ 
havn (!); Syd: Trangisvaagfjord (!). 
215. C. scopulorum (Web. et Mohr.) Ag. emend. Johs. Schmidt 1 , 
Danm. blaagr. Alg., p. 110 (390). 
Found near extreme high-water mark, frequently at a consider¬ 
able height above sea-level, e. g. near Bosdalafos where it occurred 
at a height of 80 feet; it formed here in association with other 
blue-green algae, Lichens , etc. dark-brown, almost black crusts on 
the rock. It has been found both in the spring, summer and 
autumn months, but generally only poorly developed specimens 
were met with, and Johs. Schmidt tells me that this is the case 
1 Determ. Johs. Schmidt. 
