Pterigynandrum Hedwig, 1801.

Pterigynandrum filiforme is one of the smallest julaceous mosses. It has ecostate, concave leaves with abundant foliose paraphyllia and strongly prorate laminal cells. It occurs on the bark of coniferous trees and on the face of rock outcrops in montane forests throughout the state.
see key to Lescuraea Etc.

Species included:
Pterigynandrum filiforme Hedwig