Flora of North America species comparison

leaves erect-appressed when dry, ovate to ovate-lanceolate, 1.4–2 mm;

margins erect-incurved, entire;

apex obtuse;

basal laminal cells ± rectangular, walls thick, not nodose;

distal cells 13–18(–20) µm, 1-stratose, papillae 1 per cell, conic, large.

leaves erect-appressed when dry, oblong-lanceolate to oblong, 0.7–1.3 mm;

margins reflexed to broadly recurved, entire;

apex rounded-obtuse;

basal laminal cells elongate, walls thick, ± nodose;

distal cells 7–13 µm, 1-stratose, papillae 1 or 2 per cell, conic or C-shaped, small.

0.5 mm.

to 5 mm.

dioicous.

gonioautoicous.

1/2 emergent, oblong-cylindric, 1.6–2 mm, strongly 8-ribbed to base;

stomata superficial;

peristome double;

prostome absent;

exostome teeth 8, reflexed, evenly papillose, sometimes irregularly striate distally;

endostome segments 8, well developed, of 2 rows of cells, smooth.

immersed or slightly emergent, ovate-oblong, widest at mouth, less than 1 mm, distinctly 8-ribbed to base when dry;

stomata superficial;

peristome double;

prostome absent;

exostome teeth 16, spreading or reflexed when dry, papillose to cross striolate proximally, papillose to vertically or reticulately striolate distally;

endostome segments 8, well developed, usually present when capsule is old and dry, thick, delicate, of 2 rows of cells, as wide as exostome teeth, hyaline, granulate-papillose.

short-conic, papillose, naked, not plicate.

short-conic, finely papillose, naked or hairs few near tip, hairs finely papillose.

20–25 µm.

17–20 µm.

asexual reproduction by gemmae on both surfaces of leaf.

asexual reproduction by gemmae on leaves.