Matt,
I believe that you mean plants that are native to areas that vents naturally inhabit...right?
If that's the case some species that you can use are:
For color- passion vines (passiflora genus)
For big enclosures- heliconia: vents are known to breed in the leaf axils of this plant in the wild
More practical- Fittonia spp. (terrestrial)
Calathea spp.- many native to the upper Amazon
Philodendron spp.
If I'm not mistaken neoregelia's are not native to most parts of the vents distribution so go with broms that are such as members of the genera tillandsia, vriesea, and guzmania.
Hope that helps....post some pictures when your done.
-----
Justin
stk18119@loki.stockton.edu
D.auratus (Costa Rican, Nicaraguan)
D.leucomelas
D.tinctorius (lorenzo, yellowback, citro, pb, oyopock,etc.)
D.azureus
D.ventrimaculatus (yellow/gold)
D.pumilio (blue jeans, solid red)
P.aurotaenia (narrow bands/green)
P.bicolor
E.tricolor (Santa Isabel)
H. leucophyllata
P. hypochondrialis azurea
P. resinifictrix
A. caladryas
etc.......