‖prop. n. [ NL., fr. Gr. pe`kein to comb + petri`s a kind of fern. ] (Paleon.) An extensive genus of fossil ferns; -- so named from the regular comblike arrangement of the leaflets. [ 1913 Webster ]
‖prop. n. [ NL., fr. Gr. pe`kein to comb + petri`s a kind of fern. ] (Paleon.) An extensive genus of fossil ferns; -- so named from the regular comblike arrangement of the leaflets. [ 1913 Webster ]