Amphidium Schimp., Coroll. 39. 1856, nom. cons.
Plants small to medium-sized, caespitose, olive‑green above, yellow‑brown below. Stems erect, repeatedly forked, sparingly radiculose. Leaves erect at base, crisped and contorted when dry, flexuose spreading when wet, keeled, linear to linear‑lanceolate, acute; costa subpercurrent; margins irregularly recurved; cells short, rounded above, rectangular below, pluripapillose or papillose‑striate. Setae short, erect or curved. Capsules ovoid to ovoid‑oblong, deeply 8 plicate; opercula apiculate to shortly rostrate; peristome absent. Spores spherical. Calyptrae cucullate, smooth.