Plants somewhat medium sized, forming mats, rather dull light to dark green. Stems 3-4 cm long, decumbent or subascending, non-stipitate or weakly so, irregularly pinnately branched; in cross-section central strand absent or weak. Leaves usually falcate-secund, erect-spreading, oblong- to ovate-lanceolate, ca. 1 mm long, 0.3 mm wide, concave, apex acute to short acuminate; margins plane, erect to incurved distally, entire to weakly denticulate distally; costae short, variable, single or forked; apical cells rhomboidal, 25-30 µm long, 10 µm wide, often with distal cell ends projecting; median cells linear, 40-75 µm long, 5-6 µm wide; lower and basal cells narrowly oblong-rectangular; alar region little differentiated, few cells short, rhomboidal to subquadrate. Sporophytes not observed in the tropical Andes.
Plantas algo medianas, formando tapices verdes, algo opacas claras a oscuras. Tallos 3-4 cm de largo, decumbentes o subascendentes, irregularmente pinnados; cordón central ausente o tenue en sección transversal. Hojas falcado-secundas o no, erecto-extendidas, oblongas- a ovado-lanceoladas, aprox. 1 mm de largo, 0.3 mm de ancho, cóncavas, ápice agudo a corto acuminado; márgenes planos, erectos a incurvos distalmente, enteros a levemente denticulados distalmente; costas cortas, variables, simples o bifurcadas; células de la lámina lisas o proyectándose distalmente en los ángulos celulares, células apicales romboidales, 25-30 µm de largo, 10 µm de ancho; células mediales lineares, 40-75 µm de largo, 5-6 µm de ancho; células inferiores y basales estrechamente oblongo-rectangulares; región alar poco diferenciada, con pocas células cortas, romboidales a subcuadradas.