Flora of North America species comparison

irregularly branched, smooth;

paraphyllia, when present, squamiform.

and branch leaves similar.;

stem leaves crisped, incurved to slightly contorted when dry, erect and spreading when moist, ovate, ovate-lanceolate, or lanceolate, not plicate;

margins plane, serrate or entire, limbidium sometimes present;

apex gradually or abruptly acuminate, hair-point present or absent;

costa single, ending before apex, pellucid, straight distally;

alar cells not differentiated;

medial and distal laminal cells quadrate-hexagonal, oblong, or rhomboidal, finely and obscurely 1- or multipapillose over lumen, walls moderately thick.

ovate, to 1.6 mm;

margins serrate, limbidium indistinctly present;

apex long, narrow, hair-point present;

costa ending before apex, abaxial surface smooth;

distal medial laminal cells short, isodiametric, 6–8 µm, multipapillose.

1–1.5 cm, rough.

to 2 cm.

dioicous;

perichaetial leaves pale translucent, longer, apex more acuminate.

inclined to horizontal, broadly oval to suborbicular, 1.2–1.8 mm;

operculum long-rostrate.

inclined to horizontal, oblong-oval, asymmetric;

annulus present;

operculum conic- to long-rostrate;

peristome well developed;

exostome teeth lanceolate, densely cross striate-papillose basally, papillose distally;

endostome basal membrane high, segments slender, cilia long.

12–15 µm, smooth.

9–21 µm, smooth or papillose.

asexual reproduction absent.