The Collaborative International Dictionary
Acotyledonous
Acotyledonous \A*cot`y*led"on*ous\ (#; 277), a. Having no seed lobes, as the dodder; also applied to plants which have no true seeds, as ferns, mosses, etc.
Wiktionary
acotyledonous
a. Having no seed lobes, as the dodder; also applied to plants which have no true seeds, as ferns, mosses, etc.