Asplenium obovatum subsp. lanceolatum
© RHS, Lindley Library
Engraved colour plate of fern Asplenium obovatum subsp. lanceolatum (lanceolate spleenwort) by J.E. Sowerby from the book 'The Ferns of Great Britain' by Charles Johnson. Johnson was a fellow of the Linnean Society and Botanical Lecturer at Guys Hospital, London.