345 
Wittr. et Nordsi, Exsicc. = V. B. Wittrock et O. Nordstedt; Algae 
aquae dulcis exsiccatae praecipue scandinavicae. Fasc. 1—29. 
Lyngb. — H. C. Lyngbye. 
Rostr. = E. Rostrup. 
H. S. = Herman G. Simmons. 
H. J. = Helgi Jonsson. 
! = F. Borgesen. 
Vid. = Videro. Ost. = Ostero. 
Str. = Stromo. Syd. — Sydero. 
A. Rhodophyceae. 
I. Bangioideae. 
Order. BANGIACEAE. 
BANGIA Lyngb. 
1. B. fuscopurpurea (Dillw.) Lyngb., Hydrophyt., p. 83; Kjellm., 
N. L, p. 241 (192). 
This species belongs to the littoral zone and grows on exposed coast 
at a high level generally considerably above high-water mark, as also 
mentioned by Lyngbye:— »Habitat ad littora Faeroensia in summo 
refluxus limite saepe denudato.« It prefers sharply inclined rock 
faces where it is liable to be dashed by the spray, and in calm 
weather it can also survive a longer period of desiccation. I never 
came across it in rock-pools though Kj ell man, 1. c. says it is to be 
found there. It grows gregariously in large patches often associated 
with Urospora. Specimens bearing reproductive organs were found 
from April to August. The specimen of var. atroparpurea Lyngb. 
(1. c.) in Lyngbye’s Herbarium is a fruitbearing plant belonging 
to this species. 
This is a common species of the Fseroese coasts; it was first men¬ 
tioned by Lyngbye. 
PORPHYRA G. Agardh. 
2. P. coccinea J. Ag. Til Algernes Systematik, VI, Ulvaceae, 
p. 56; Kuckuck, Bemerkungen zur marinen Algenvegetation von 
Helgoland, II p. 390. 
