The British ferns, or, Coloured figures and descriptions with the needful analyses of the fructification and venation of the ferns of Great Britain and Ireland
London :Lovell Reeve,1861.
biodiversitylibrary.org/page/51658728
The ferns of Great Britain, and their allies the club-mosses, pepperworts, and horsetails /.
London :Printed for the Society for Promoting Christian Knowledge :[1855].
biodiversitylibrary.org/page/38460630