Flora of North America species comparison

leaves stiff, erect-appressed, slightly secund when dry, oblong-lanceolate, lanceolate, or ovate-lanceolate, 2–4.3 mm;

margins revolute from base to near apex, entire;

apex obtuse, bluntly or narrowly acute, or gradually acuminate;

basal laminal cells rectangular to elongate, grading to elliptic-quadrate, walls thick, nodose;

distal cells 8–12 µm, 1-stratose, papillae 1–3 per cell, conic or 2-fid, low.

leaves stiff, loosely erect-appressed when dry, ovate-lanceolate to lanceolate, 1.8–2.8 mm;

margins revolute nearly to apex, entire;

apex sharply to slenderly acute, usually apiculate, rarely obtuse, not carinate, not incurved when dry;

basal laminal cells rectangular, grading to quadrate at margin, walls thin, not nodose;

distal cells 14–20 µm, 1-stratose, lumina smooth, rounded, smooth or papillae 1 or 2 per cell, conic, small.

1.5–4 mm.

to 0.5 mm.

gonioautoicous.

autoicous.

fully exserted, cylindric, 1.4–2.6 mm, smooth or sometimes slightly plicate distally;

exothecial cells homogeneous;

stomata superficial;

peristome double;

prostome absent or rudimentary;

exostome teeth 16, erect, papillose;

endostome segments 8, occasionally rudimentary, usually absent in open capsules, of 1 row of cells, smooth.

immersed to 3/4 emergent, oblong to oblong-cylindric, 1.2–1.5 mm, strongly 8-ribbed, sometimes constricted below mouth when dry;

stomata immersed, mid capsule, not or to 1/2 covered by subsidiary cells, cells projecting or not, inner walls thickened or not;

peristome double;

prostome absent;

exostome teeth 8, rarely splitting to 16, reflexed, finely and evenly papillose;

endostome segments 8, not well developed, of 1 or 2 rows of cells, smooth.

conic-oblong, smooth, sparsely hairy, hairs finely papillose.

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

10–15 µm.

14–21 µm.

asexual reproduction absent.

asexual reproduction occasional, by gemmae on leaves.

with hairs absent.