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.

ovate to long-ovate, occasionally ovate-lanceolate, apex broadly acute to rounded, short- to long-awned, margins recurved or revolute in distal 4/5 to apex or nearly so, not bordered;

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

distal laminal cells hexagonal, 10–13 µm wide, 1:1, strongly papillose with 2-fid papillae.

0.6–1.5 cm.

0.6–1 cm.

autoicous.

apparently dioicous but probably monoicous, uncommonly clearly 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, cylindric, erect and nearly straight, urn length ca. 2 mm;

peristome often dehiscent with the operculum, ca. 120–200 µm, teeth of 16 flattened, irregular, oblong segments, weakly twisted, variously divided into 2 branches, basal membrane absent but teeth cohering basally, or present and low;

operculum 0.5–1 mm.

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

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

exerted.

exerted.