Tuerckheimia Broth., Oefvers. Förh. Finska Vetensk.-Soc. 52A (7): 2. 1910.
Plants medium-sized, light- to dark-green, at times glaucous. Stems erect, irregularly branched, sclerodermis absent or weakly developed, hyalodermis absent or partially present, central strand present or absent; rhizoids dimorphic: slender, red to hyaline, smooth, branched ones scattered on the stem and massive, red, sparsely branched ones originating in leaf axils. Leaves oblong to linear-lanceolate, plane to concave, spreading-incurved when dry, spreading to wide-spreading when wet; apices narrowly acute; lamina unistratose or occasionally bistratose in patches; margins entire or strongly dentate, plane; costa percurrent or excurrent and mucronate, guide cells and two stereid bands present, ventral surface layer of 2–3 enlarged, smooth or papillose cells; upper cells subquadrate to hexagonal or elliptic, thick-walled, pluripapillose, papillae massive, simple or branched, centered over lumina, basal cell larger than the upper cells, rectangular, smooth, alar cells not differentiated. Perichaetia terminal. Setae elongate. Capsules ellipsoidal to short cylindrical; stomata in neck; opercula long-rostrate; annuli weakly vesiculose or persistent; peristome absent or rudimentary as a low, papillose membrane just exceeding the capsule mouth. Spores smooth or papillose. Calyptra not seen.