Hymenodon pilifer
Hook.f. & WilsonAsexual propagules absent. Mats or tufts on tree fern trunks, rarely on basalt rock. Stems simple, (5–) 8–14 mm long, brown at base, otherwise yellow, tomentose with red-brown rhizoids at base. Leaves erect-spreading, scarcely altered when dry, broadly elliptic, 0.4–1 mm long, not including the hairpoint, 0.2–0.4 mm wide, flat, little altered when dry; costa subpercurrent; apex obtuse to occasionally acute in leaves near stem apex, acute in leaves near stem base, with a hair-point; hair-point 125–500 μm long, with apical cell 90–100% of length, hyaline, smooth; margins crenulated from projecting cells, plane; laminal cells isodiametric, quadrate to short rectangular, 4–11 μm long, 5–10 μm wide, similar throughout, mammillose. Setae 6–17 mm long, tan, smooth. Capsules oblong, erect to slightly inclined, 0.7–1.6 mm long, pale brown. Operculum oblique-rostrate from conic base, 0.6–0.7 mm long.
VVP, GipP, OtP, CVU, EGL, EGU, WPro, HSF, HNF, OtR, Strz. Also QLD, NSW and Tas. New Zealand and Fiji. In tree-fern gullies among wet-sclerophyll forest or in rainforest in the Otways, Dandenongs, Strzelecki Ranges, Wilsons Promontory and East Gippsland and on basalt at the entrance of lava tubes at Byaduk Caves near Hamilton.
Meagher, D. (2008). Studies on Victorian Bryophytes 9: The genus Hymenodon Hook.f. and Wilson. The Victorian Naturalist 125: 169–171.
Tessler, M. (2012). A monograph of Hymenodon (Orthodontiaceae). The Bryologist 115: 493–517.