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.

broadly obovate, occasionally elliptic, apex broadly acute, rounded or occasionally emarginate, awned, margins plane or occasionally weakly recurved proximally, often weakly bordered distally with slightly smaller and slightly more thick-walled cells;

costa long-excurrent, lacking an adaxial pad of cells, strong but distally narrow, mostly 2–4 cells across adaxial surface;

distal laminal cells inflated hexagonal, occasionally irregularly quadrate, width 18–25 µm, 1:1 or occasionally longitudinally elongate, smooth.

0.6–1.5 cm.

0.9–1.1 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, erect and nearly straight, urn 2–2.7 mm;

peristome 1000–1400 µm, teeth of 32 filaments, twisted once, basal membrane ca. 200 µm;

operculum 1.1–1.5 mm.

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

11–14 µm, spheric, essentially smooth.

exerted.

exerted.