Morton, C. V. 1947: The American species of Hymenophyllum, section Sphaerocionium. – Contr. U.S. Natl. Herb. 29: 139-201

Title	The American species of Hymenophyllum, section Sphaerocionium
Authorship	Morton, C. V.
Date published	1947
Volume	29
In journal	Contr. U.S. Natl. Herb.
Pages	139-201