Flora of North America species comparison

red or brown.

red or reddish 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.

green to dark green, slightly contorted or undulate when dry, obovate or occasionally elliptic, 2.5–5 mm;

base long-decurrent;

margins reddish brown, multistratose with stereid band, toothed distally, teeth paired, long, sharp;

apex acute, obtuse, or rounded-acute, cuspidate, cusp toothed;

costa percurrent or excurrent, distal abaxial surface smooth, sometimes with few small teeth;

medial laminal cells ± isodiametric or short-elongate, 25–40 µm, smaller towards margins, not in rows, not collenchymatous, blue postmortal color absent;

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

single.

single or multiple.

dioicous.

synoicous.

pale brown, 3–5 mm;

operculum conic-mammillate, rarely short-rostrate;

exostome yellowish brown.

pale yellow, 1.5–4 mm;

operculum rostrate;

exostome dark reddish brown, often purplish.

30–35 µm.

16–24 µm.