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, 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.

1.5–4 mm.

0.4–1 mm.

gonioautoicous.

gonioautoicous.

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.

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.

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

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

10–15 µm.

13–18 µm.

asexual reproduction absent.

asexual reproduction by gemmae on abaxial surface of leaves.

with hairs absent.