. The fern lover's companion; a guide for the Northeastern States and Canada. Short, straight, mostly obhciiie to the (hisium ratlier narrow, openin,- toward tlie midrib,fronds lohed or variously divided. Short, indusium usually mf)re or less cur\-ed andfreiiucntly crossing a vein. The large sjileenwortsincluding Lady Fern. Atlnjrium. DESCRIPTIVE TEXT OF THE FERNS In this manual our nati\e ferns arc i;rouped sfienti-fically under five (iistinct families. By far the largest ofthese groups, and the first to he treated, is that of the realferns (Pu!i/podi()re
. The fern lover's companion; a guide for the Northeastern States and Canada. Short, straight, mostly obhciiie to the (hisium ratlier narrow, openin,- toward tlie midrib,fronds lohed or variously divided. Short, indusium usually mf)re or less cur\-ed andfreiiucntly crossing a vein. The large sjileenwortsincluding Lady Fern. Atlnjrium. DESCRIPTIVE TEXT OF THE FERNS In this manual our nati\e ferns arc i;rouped sfienti-fically under five (iistinct families. By far the largest ofthese groups, and the first to he treated, is that of the realferns (Pu!i/podi()re<r) with sixty s]ieeies and several eliiefvarieties. Then follow [he floircriiifi ferns lOsnuniiiaecir)with three si)ecies; the ciirh/ i/rciss and cUinhimj frrus{Schtzwaeere) with two s[)ecies; the adders toiKjiie andgrape jcrns iOpliiiiijtossaccr) with seven species; and theJilinji ferns iHi/inendpln/Udeea] with one species. Corresponding with these fi^•e families, the sporangiaor spore cases of ferns have five quite distinct forms onwhich the families are foundecl.
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Keywords: ., bookcentury1900, bookdecade1920, bookidcu3192400171, bookyear1922
