A-B. Asplenium Adiantum-nigrum. C-D. A. Adiantum-nigrum obtusum. The black maidenhair spleenwort, Bradbury, Henry Riley (1821-1887), (Illustrator), ferns of Great Britain and Ireland.
A-B. Asplenium Adiantum-nigrum. C-D. A. Adiantum-nigrum obtusum. The black maidenhair spleenwort, Bradbury, Henry Riley (1821-1887), (Illustrator), ferns of Great Britain and Ireland