a. Bot. [f. prec. + -OUS.] Having no distinct cotyledons or seed-lobes, attribute of one of Jussieu’s three great divisions of the vegetable kingdom.
1819. Pantologia, I. s.v., It is a doubt however, whether any plant be strictly acotyledonous.
1835. Hooker, Brit. Flor., 477. Acotyledonous or Cellular Plants: this class corresponds with the 24th Cryptogamia in the Linnæan System.
1880. Gray, Bot. Text-Bk., 394. Acotyledonous, without cotyledons … Mostly applied to plants which have no proper seed nor embryo, and therefore no cotyledon.
