Flora of North America species comparison

ovate to oblong-lanceolate, apex acute, mucronate to short-awned, occasionally comparatively long-awned, margins recurved proximally to nearly plane, not or weakly bordered distally with slightly thicker-walled cells;

costa excurrent, lacking an adaxial pad of cells, distally narrow, 2(–3) cells across adaxial surface;

distal laminal cells distally quadrate-hexagonal, width 13–17 µm, 1:1, weakly simply papillose or smooth.

obovate, elliptic or less commonly ovate, apex broadly acute to occasionally rounded, awned or long-mucronate, margins strongly and broadly recurved in proximal 4/5 of leaf, not bordered;

costa long-excurrent, with an elongate adaxial pad of bulging, rounded cells with 3–4 simple papillae, distally narrow, 2–4 cells across adaxial surface;

distal laminal cells subquadrate, 12–16 µm wide, 1:1, smooth or less commonly papillose with 1(–2) scattered simple papillae.

very short.

ca. 0.4(–0.9) cm.

autoicous.

autoicous.

cleistocarpic, spheric to very short-ellipsoid, erect, mostly 0.9–1.3 mm;

peristome absent;

operculum not differentiated.

stegocarpic, not systylius, elliptic or cylindric, or erect and nearly straight, urn ca. 0.8–1.2 mm;

peristome 100–150 µm, teeth 16, ligulate straight, or short, rudimentary, basal membrane lacking or very low;

operculum 0.5 mm.

(25–)33–40 µm, spheric, densely papillose.

15–18 µm, spheric, finely papillose.

immersed.

exerted.