Flora of North America species comparison

leaves ± incurved basally and wide-spreading apically when dry, spreading with reflexed apices when moist, broadly ovate, distinctly plicate, 1 mm;

margins plane at least when removed from stem, rarely ± revolute proximally, papillose-serrulate, more strongly so in acumen;

apex abruptly acuminate;

costa nearly filling acumen but disappearing near apex;

distal laminal cells rhombic to oblong-rhombic, to 24 × 8–10 µm. Branch leaves apical cell truncate, multipapillose.

leaves ± erect, appressed when dry, erect-spreading when moist, triangular-ovate, not plicate, 0.6–1.5 mm;

margins revolute throughout, papillose-serrulate;

apex acuminate;

costa ending well before apex;

distal laminal cells irregularly oblong-hexagonal or rhombic, 6–10 × 8–12 µm, papillae sometimes 2-fid, not appearing multipapillose.

apical cell truncate, multipapillose.

2–4.2 cm.

1.5–4.5 cm.

2–3.5 mm;

operculum 0.7–1 mm, long-conic or bluntly short-rostrate;

endostome cilia in groups of 2 or 3.

1.8–4 mm;

operculum 0.7–2 mm, long-rostrate;

endostome cilia in groups of 2 or 3.

11–16 µm, smooth or nearly so.

12–24 µm, smooth.

branch leaves to 0.5 mm;

costa shorter.

branch leaves to 0.5 mm;

costa 1/2–2/3 leaf length.

branch leaves 0.2 mm;

apex acute;

costa 1/3–2/3 leaf length.

branch leaves 0.3 mm;

apex acute;

costa to 1/2 leaf length.

leaves to 4.2 mm, margins denticulate, sometimes dentate or notched near base of acumen.

leaves to 5 mm, margins not ciliate to ciliate proximally, often denticulate distally.