Podomitrium
Terrestrial or on logs. Specialised asexual propagules absent. Thallus lime or dark green, prostrate, expanding from stipe-like base, simple or sparingly furcate, often branching from abaxial midrib, with unistratose wings approximate equally developed on either side of midrib or with one side conspicuously broader (not in Victoria); margins entire, undulate. Rhizoids scattered along abaxial base of thallus. Antheridia adaxial on short ovate and laciniate branch that emerges from abaxial midrib, in two rows, sunken into cavities. Sporophyte at small orbicular apex of short branch arising from near base of abaxial midrib, surrounded by involucre and shoot calyptra; involucre a fimbriate ring; shoot calyptra fleshy tubular, fimbriate at apex; pseudoperianth absent. Capsule cylindric, bistratose, dehiscing by 2 valves; elaters bispiral. Spores spherical, areolate, green or greenish-brown.
Three species in Malesia, New Caledonia, New Zealand, and south-east Australia (Enroth 1991); one species, P. phyllanthus (Hook.) Mitt., in Victoria.
Enroth, J. (1991). On the phytogeography of western Melanesian Hepaticae. A literature review. Journal of the Hattori Botanical Laboratory 70: 1–42.