Flora of North America species comparison

dark red or reddish brown when old;

micronemata absent.

dark red to reddish brown when old;

micronemata present.

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.

yellow-green or dark green, somewhat contorted when dry, broadly obovate, elliptic, or occasionally orbicular, 3–6(–7) mm;

margins green or reddish, 1-stratose;

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

costa 7/8 leaf length to subpercurrent or rarely percurrent, sometimes 2-fid distally;

medial laminal cells elongate, (45–)60–90(–100) µm, weakly collenchymatous, walls weakly pitted;

marginal cells linear, ± rectangular, or rhomboidal, in 1–2(–3) rows.

1–2.5 cm.

(1.3–)2–5 cm.

dioicous.

synoicous.

ovate, 2.5–3.5 mm;

operculum conic-apiculate;

exostome yellow, lamellae 18+.

ovate or subglobose, 1.5–2.5 mm;

operculum conic-rostrate;

exostome dark brown, lamellae less than 20.

25–35 µm.

(28–)40–50 µm.