Catalogue no.:	A-647974
Taxon:	Batrachospermum atrum (Huds.) Harv.
Label:	Batrachospermum atrum
Family:	Rhodophyta
Collector:	Gunnar Israelsson
Date:	1934 10 01
Country:	Sweden
Landskap:	Uppland
Socken:	Väddö
Locality:	Gåsvik, in fluvio juxta molam