Flora of North America species comparison

ovate or elliptic to obovate, apex broadly acute to rounded or emarginate, short- to long-awned, margins narrowly recurved or revolute to near apex, commonly bordered distally with 2–4 rows of thicker-walled, papillose to smooth cells;

costa long-excurrent, lacking an adaxial pad of cells, distally narrow, 3–4(–6) cells across the convex adaxial surface;

distal laminal cells hexagonal, 10–15 µm wide, 1:1, strongly papillose with 2(–4)-fid papillae.

elliptic, apex broadly acute to rounded-acute, mucronate or apiculate, occasionally obtuse, margins recurved at mid leaf, bordered throughout or in lower 2/3 with 2(–3) rows of narrower, short- to long-rectangular, thicker-walled, somewhat less papillose cells that are 1–2-stratose;

costa percurrent or short-excurrent, lacking an adaxial pad of cells, distally narrow, 3–4 cells across the convex adaxial surface;

distal laminal cells hexagonal to rectangular, 16–21 µm wide, 1–2:1, strongly 2-fid papillose.

0.6–1.5 cm.

0.9–1.5 cm.

autoicous.

autoicous.

stegocarpic, not systylius, cylindric, erect and nearly straight, urn 1.5–2.7 mm;

peristome 300 µm, teeth of 32 filaments twisted 1/2–2 times, basal membrane low, to 50 µm;

operculum 0.6–1 mm.

stegocarpic, not systylius, cylindric, horizontal or pendent, nearly straight, urn 1.8–2.5 mm;

peristome 300–500 µm, teeth 16, weakly twisted to twisted 1 turn, divided nearly to the base into 2–3 branches and variously perforate, basal membrane low, ca. 50 µm;

operculum 0.5–1.2 mm.

8–12 µm, spheric, finely papillose or essentially smooth.

18–23(–35) µm, spheric, densely papillose.

exerted.

exerted.