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 and often slightly contorted when dry, narrowly lanceolate to oblong-lanceolate, 2–3.6 mm;

margins revolute to near apex, entire;

apex acute;

basal laminal cells elongate-rectangular, walls thick, nodose;

distal cells 7–14 µm, 1-stratose, papillae 2 or 3 per cell, conic, size moderate.

to 1 mm.

0.5–1.6 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.

1/2–2/3 emergent, sometimes immersed or fully exserted, oblong to oblong-cylindric, 0.8–1.5 mm, strongly 8-ribbed 1/2–2/3 length;

stomata superficial;

peristome double;

prostome rudimentary or absent;

exostome teeth 8, reflexed, reticulately papillose to obscurely papillose, deeply perforate, cancellate;

endostome segments 8, well developed, usually present when capsule is old and dry, narrow, of 1 or 2 rows of cells, smooth or finely verrucose.

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

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

15–19 µm.

19–29 µm.

asexual reproduction absent.

asexual reproduction absent.

with hairs absent.