Pecopteris
栉羊齿属
古植
pecopteris[ noun ]
Carboniferous fossil fern characterized by a regular arrangement of the leaflets resembling a comb
<noun.plant>
Pecopteris \Pe*cop"te*ris\, n. [NL., fr. Gr. ? to comb + ? a
kind of fern.] (Paleon.)
An extensive genus of fossil ferns; -- so named from the
regular comblike arrangement of the leaflets.