Flora of North America species comparison

red or brown.

green, yellowish, or occasionally dark green, slightly contorted, usually coiled and twisted when dry, sometimes to one side of stem, narrowly elliptic, narrowly ovate-elliptic, or ovate-lanceolate, 3–6 mm, proximal stem leaves narrowly triangular;

base short-decurrent;

margins pale brown, 2-stratose, toothed to below mid leaf, sometimes to near base, teeth paired, large, sharp;

apex acute or acuminate, apiculate or cuspidate, cusp sometimes toothed;

costa ending well below apex or occasionally percurrent, distal abaxial surface strongly toothed, adaxial surface occasionally toothed;

medial laminal cells ± isodiametric or short-elongate, (15–)17–26(–30) µm, slightly smaller towards margins, not in diagonal rows, sometimes in longitudinal rows, not or weakly collenchymatous, blue postmortal color absent;

marginal cells linear, in (2–)3–4 rows.

single.

dioicous.

pale brown, 3–5 mm;

operculum conic-mammillate, rarely short-rostrate;

exostome yellowish brown.

30–35 µm.