Flora of North America species comparison

dark red or reddish brown when old;

micronemata absent.

dark red or reddish brown when old;

micronemata absent.

green to dark green, weakly contorted when dry, broadly obovate, elliptic, or often ± orbicular, (3.8–)4–6(–9) mm;

margins green or sometimes pale reddish, 1–4-stratose;

apex rounded, occasionally retuse, rarely short-apiculate;

costa ending well before apex to 7/8 leaf length or rarely subpercurrent;

medial laminal cells elongate or short-elongate, (60–)70–130(–170) µm, rarely collenchymatous, walls with broad central pits;

marginal cells linear or short-linear, in (1–)2(–3) rows.

green to light green, contorted when dry, broadly obovate or elliptic, (2–)3–5(–7) mm;

margins pale green or reddish, 2–4-stratose;

apex rounded or sometimes obtuse or truncate, short-mucronate or apiculate;

costa percurrent or occasionally subpercurrent;

medial laminal cells short-elongate or elongate, (50–)65–100(–120) µm, collenchymatous or not, walls pitted;

marginal cells linear or short-linear, in 3 or 4 rows.

1–2.5 cm.

1.5–3.5 cm.

dioicous.

dioicous.

ovate, 2.5–3.5 mm;

operculum conic-apiculate;

exostome yellow, lamellae 18+.

oblong-cylindric, 2–3.5 mm;

operculum conic-rostrate;

exostome greenish yellow, lamellae 18+.

25–35 µm.

29–41 µm.

asexual reproduction by green protonematous rhizoids.