Flora of North America species comparison

leaves stiff, erect-appressed when dry, narrowly lanceolate to ovate-lanceolate, 2–4.5 mm;

margins recurved to narrowly revolute to near apex, entire;

apex sharply to slenderly acute;

basal laminal cells elongate to rectangular, walls thick, ± nodose;

distal cells 6–13 µm, 1-stratose, papillae 1 or 2 per cell, conic and small, or 2-fid and low.

leaves stiff, loosely erect-appressed when dry, lanceolate to oblong-lanceolate, 1.8–2.2 mm;

margins recurved to just below apex, entire;

apex narrowly obtuse to bluntly acute, not incurved when dry;

basal laminal cells rectangular, walls thin, nodose toward costa;

distal cells 8–13 µm, 1-stratose, lumina irregular due to uneven wall thickenings, smooth or papillae 1–3 per cell, conic, small.

to 1.8 mm.

0.4–1 mm.

gonioautoicous.

gonioautoicous.

immersed, emergent, or slightly exserted, usually 1/3 emergent, globose ovate, ovate-oblong, or short-oblong, 1.3–1.8 mm, slightly or distinctly 8-ribbed 1/2–2/3 length;

stomata superficial;

peristome single, rarely double;

prostome large, conspicuous, or rudimentary;

exostome teeth 16, erect or sometimes spreading-recurved when old, smooth, scattered-papillose, or coarsely papillose-granulate;

endostome segments absent, or rarely 8, rudimentary, of 1 row of cells, smooth or roughened.

emergent, oblong-cylindric and strangulate when dry, 0.4–1 mm, 8-ribbed when dry, ribs thick, broad, strongly constricted below mouth;

stomata immersed, mid capsule, 1/2 to completely covered by subsidiary cells, cells projecting horizontally over stomata, inner walls thickened;

peristome double;

prostome absent;

exostome teeth 8, reflexed, finely and evenly papillose;

endostome segments 8, well developed, of 1 or 2 rows of cells, smooth.

oblong, smooth, hairy or rarely naked, hairs finely papillose.

oblong, smooth, naked or sparsely hairy, hairs smooth.

13–21 µm.

13–18 µm.

asexual reproduction absent.

asexual reproduction by gemmae on abaxial surface of leaves.

with hairs absent.