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; reproductive branches with leaflike paraphyses at base of seta; 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 µm.

Distribution

Fla., nearly worldwide, tropical and subtropical regions.

Discussion

Species ca. 35 (2 in the flora).

Neckeropsis has stem leaves with plane basal margins and secondary stem leaves with rhomboidal to elongate-rectangular distal medial cells and rectangular to rhomboidal apical cells. The seta is embedded in the vaginula, and the capsules are immersed.

Selected References

None.

Lower Taxa

Neckeropsis disticha, Neckeropsis undulata

Key

1	Leaves spreading to squarrose, undulate when moist; bases strongly auriculate.	Neckeropsis undulata
1	Leaves spreading, flat when moist; bases not auriculate.	Neckeropsis disticha