%0 Generic %C [S.l.] : %D 1911. %I [s.n.], %T Ferns; a manual for the northeastern states, with analytical keys based on the stalks and on the fructification, with over 200 illustrations from original drawings and photographs %U http://SK8ES4MC2L.search.serialssolutions.com/?sid=sersol&SS_jc=TC_027956660&title=Ferns%3B%20a%20manual%20for%20the%20northeastern%20states%2C%20with%20analytical%20keys%20based%20on%20the%20stalks%20and%20on%20the%20fructification%2C%20with%20over%20200%20illustrations%20from%20original%20drawings%20and%20photographs