Flora of North America species comparison

reddish brown, brown, or black when old;

micronemata absent.

dark red or reddish brown when old;

micronemata absent.

green to dark green, slightly contorted and somewhat undulate when dry, obovate or elliptic, (2.5–)4.5–6 mm;

margins green or sometimes reddish or brownish, 2–4-stratose;

apex rounded or occasionally obtuse or retuse, short-apiculate;

costa subpercurrent or percurrent;

medial laminal cells short-elongate, sometimes elongate or ± isodiametric, (35–)45–60(–70) µm, weakly or not collenchymatous, walls pitted;

marginal cells linear, in 3–4(–5) rows.

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.

(2–)3–5 cm.

1–2.5 cm.

dioicous.

dioicous.

oblong or cylindric, 3–4.5 mm;

operculum conic-apiculate or conic-rostrate;

exostome greenish yellow, lamellae 18+.

ovate, 2.5–3.5 mm;

operculum conic-apiculate;

exostome yellow, lamellae 18+.

30–45 µm.

25–35 µm.