Should the American Hart's-Tongue Be Interpreted as a Distinct Species?

• 1 July 1955
• journal article
• Published by JSTOR in American Fern Journal
• Vol. 45  (3) , 127
• https://doi.org/10.2307/1544863

Abstract

Keywords

• HART'S TONGUE
• AMERICAN HART'S
• DISTINCT SPECIES
• TONGUE BE INTERPRETED