Amphidium tortuosum
(Hornsch.) Cufod.Autoicous. Tufts on rocks, olive- or yellow-green, 4–25 (–35) mm tall. Stems brown, sparsely covered in brown rhizoids. Leaves erect-spreading when moist, strongly contorted when dry, linear-lanceolate, 2–4 mm long, 0.15–0.3 mm wide, carinate; apex narrowly acute; costa subpercurrent to percurrent; margin weakly dentate or entire, plane or slightly reflexed around midleaf on one side, or occasionally undulate, without a border; laminal cells in apical half rounded-quadrate or elliptic, 5–12 μm long, 5–12 μm wide, pluripapillose, gradually transitioning to basal cells close to base; basal cells rectangular, 15–38 μm long, 5–10 μm wide, hyaline, pluripapillose, but becoming less so toward insertion. Seta 1–2 mm long, yellow, smooth, twisted anticlockwise. Capsule erect, ellipsoid or urceolate, 0.7–1.5 mm long, greenish brown, reddish brown when dry, ribbed, flaring at the mouth when old. Operculum rostrate from conic base, c. 0.25 mm long.
Widespread along and south of the Great Dividing Range, among dry rock outcrops, exposed rock in sinkholes or on rock beside creeks or in gorges. Also WA, SA, NSW and Tas. New Guinea, Islands of the south-west Pacific, South Africa, tropical East Africa, USA, Central America, islands of the Caribbean and northern South America south to Bolivia.