The Botany of Iceland - 01.12.1916, Qupperneq 4

348 ERNST 0STRUP: MARINE DIATOMS FROM THE COASTS OF ICELAND
The names Europe, Africa, Asia, America, Australia, Greenland,
Arctic Seas are abbreviated in the text respectively as follows: Eu.,
Afr., As., Am., Austr., Grl., A. S.
Freshwater forms are frequently found in the samples examined
from the coasts of Iceland; these are however excluded in this
paper, but will be included in a future work dealing with the
fresh-water diatoms of Iceland. On the other hand, several forms
found in brackish water are here included.