Flora of North America species comparison

leaves stiff, loosely erect-appressed when dry, narrowly lanceolate to oblong-lanceolate, 1.4–2.9 mm;

margins strongly revolute to just before apex, entire;

apex obtuse to bluntly acute, not incurved when dry;

basal laminal cells subquadrate to short-rectangular, walls thin, not nodose;

distal cells 8–10 µm, 1-stratose, lumina irregular due to uneven wall thickenings, papillae 1–2 per cell, conic, low.

leaves loosely erect-appressed when dry, elongate-lanceolate to lanceolate, 1.7–3.5 mm;

margins revolute proximally, recurved to almost plane near apex, entire;

apex ± narrowly obtuse, rarely bluntly acute;

basal laminal cells rectangular to short-rectangular, grading to quadrate at margins, walls thin, not nodose;

distal cells 7–13 µm, 2-stratose, rarely with few 1-stratose areas, papillae 1–3 per cell, conic, small;

marginal cells mostly to completely 2-stratose.

to 1 mm.

0.5–1 mm.

gonioautoicous.

gonioautoicous.

emergent, oblong to ovate, 1–1.5 mm, 8-ribbed almost to base, ribs thin, delicate, not constricted below mouth;

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

peristome double;

prostome absent;

exostome teeth 8, splitting to 16 with age, reflexed, finely and densely papillose;

endostome often absent, or segments 8, well developed, of 1 row of cells, smooth.

1/2 emergent when dry, immersed when moist, oblong or oblong-ovate, 1–1.8 mm, strongly 8-ribbed to mid capsule or entire length, rarely with 8 very short intermediate ribs, sometimes constricted below mouth when dry;

stomata immersed;

peristome double;

prostome present, occasionally rudimentary;

exostome teeth 8, sometimes irregularly split to 16, incurved becoming spreading or rarely reflexed when old, coarsely striate-reticulate or striate-papillose;

endostome segments 8, not well developed, of 1 row of cells, short, finely longitudinally striate.

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

oblong, smooth, sparsely hairy, hairs papillose.

15–19 µm.

10–17 µm.

asexual reproduction absent.

asexual reproduction absent.

with hairs absent.