1770 R. Weston I. p. xiii The Cryptogamian Class of Linnæus, containing the Ferns, Mosses, Flags, and Mushrooms.
1835 E. Hitchcock iii. 246 Vascular cryptogamian plants predominated vastly during the early periods.
1897 16 504/2 Then the key to this cryptogamian puzzle would be in our possession.