LI.—On the British species of Grammonema and Eunotia
Ralfs, John
Article
1844
The Annals and magazine of natural history; zoology, botany, and geology
13
457--461
BioStor
London Taylor and Francis, Ltd
BioStor: https://biostor.org/reference/94848 DOI: https://doi.org/10.1080/03745484409442630