Status Update: Internet Archive continues to perform maintenance on archive.org. BHL services may be occasionally affected until IA services are fully restored.
More information
Dryopteris dilatata (Hoffm.) A. Gray in North America
Britton, Donald M. 1923-2012
Article
1962
Rhodora
64
207--211
BioStor
[Cambridge, Mass., etc.] New England Botanical Club [etc.]
BioStor: https://biostor.org/reference/137737