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 ovate-lanceolate, apex broadly acute or occasionally rounded, not or weakly apiculate, margins plane, always distinctly bordered nearly throughout with 2–4 rows of narrower, thicker-walled, smooth or weakly papillose cells;

costa percurrent or ending in an apiculus, lacking an adaxial pad of cells, distally of even thickness, 4(–6) cells across adaxial surface;

distal laminal cells hexagonal or sometimes subquadrate, width 11–15 µm, 1:1;

hollow-papillose medially.

0.6–1.5 cm.

0.5–0.8(–1) cm.

autoicous.

dioicous.

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 1.1–1.5(–1.8) mm;

peristome 200–350 µm, weakly twisted, teeth of 32 rather short filaments variously anastomosing proximally, basal membrane 60–100 µm;

operculum 0.4–0.8 mm.

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

8–10 µm, spheric, finely papillose or nearly smooth.

exerted.

exerted.