Pyrrosia linearifolia is
an evergreen fern inhabiting rocks or trunks, extending rhizomes
long sideways, densely wearing brown to red-brown ramenta. Leaves
are simple-leaved, linear, 5-10cm in length, approximately 5mm in
width, entire, tips round, having stellate hairs densely throughout,
which feel like velvet. Sporangia line up vertically on either side
of the midribs on the backside of the leaves.