phlebodium

from The Century Dictionary.

• noun A small genus Of usually epiphytic middle-American ferns, allied to Polypodium, having broadly ovate, deeply pinnatifid fronds from 1 to 3 feet long, with veins copiously anastomosing to form one or more regular series of areolæ in which the sori are borne, each upon the united ends of two or more excurrent veinlets of the same areola. The type species of the genus, P. aureum, is abundant in the West Indies and extends to Florida, where it occurs uniformly on the trunks of the palmetto.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun chiefly epiphytic tropical ferns with free veins bearing sori