Minute, +/- pendulous epiphytes. Rhizome fine, creeping with close fronds, much-branched, fleshy, with many hairy roots, sometimes mat-forming, protostelic, densley covered by minute, basally attached, attenuate, clathrate scales. Fronds +/- sessile, not articulate to the rhizome, the costa with a single vascular strand, the lamina simple, entire, very fine narrow-linear, straight or curved, herbaceous, costate with several lateral veins running parallell to the costa that may unite with it distally; epidermis with scattered elongate, thick-walled cells (spicular idioblasts). Sporangia in a single sorus or in several sori elongate along the lateral veins in a groove opening towards the costa, protected by 2 equal or unequal narrow industial flaps of tissue the same textrue as the lamina, one produced on the costa, the other on or beyond the soriferous veins, sporangia on 3-seriate, apically widened stalks; paraphyses filiform, annulus longitudinal, interrupted, of 14 -16 thickened cells. Spores trilete, globose, smooth, hyaline.
Species in Papuasia
|1a.||Sori interrupted, the frond slightly dilated at several fertile portions along its length...||V. trichoidea|
|Sori continuousor only rarely broken...||2|
|2a.||Fronds generally less than 3 cm long, slightly curved; sori less than 1 cm long...||V. subfalcata|
|Fronds longer, +/- straight; sori mostly longer...||3|
|3a.||Fronds 4-6 cm long, c.0.5 mm wide; sori restricted to the apical 1-2 cm...||V. acrocarpa|
|Fronds up to c. 10 cm long; sori occupying a greater portion of the frond...||V. paradoxa|
V. emarginata; V. angustissima...