Neckeropsis Reichardt in E. Fenzl, Reise Novara. 181. 1870. Plants medium-sized, in mats or shelf-forming, green, glossy. Stems creeping, irregularly pinnate; paraphyllia absent. Secondary stem leaves spreading to squarrose, oblong or oblong-ligulate, asymmetric, undulate to flat; margins entire proximally, distinctly to slightly serrulate at apex, teeth not recurved; apex broad to rounded-truncate; costa single, 1/2-3/4 leaf length; basal laminal cells rectangular, walls pitted or not. Sexual condition synoicous or autoicous; ; perichaetial inner leaves linear to ligulate. Seta less than 0.05 cm. Capsule oblong-cylindric; exostome teeth lanceolate, papillose; endostome basal membrane low, segments papillose. Spores 13-18 -m. Species ca. 35 (2 in the flora): Florida, nearly worldwide; tropical and subtropical regions. Neckeropsis has stem leaves with plane basal margins and secondary stem leaves with rhomboidal to elongate-rectangular distal medial laminal cells and rectangular to rhomboidal apical cells. The seta is embedded in the vaginula, and the capsules are immersed.