Flora of North America species comparison

to 20 mm, central strand absent.

40–80 mm;

central strand small.

oblong to elliptic, 4–6 mm, apices broadly acute to rounded, mucronate to cuspidate, margins recurved below mid-leaf;

costa excurrent or subpercurrent, narrow;

laminal cells 10–20 µm,;

basal cells rectangular, 50–120 µm, smooth;

basal marginal cells weakly differentiated below, in 4–8 rows, elongate, smooth.

broadly ovate to elliptic, lingulate or narrowly spathulate, 2.5–5 mm;

apices broadly acute to obtuse, sometimes cucullate, mucronate or occasionally short hair-pointed;

one or both margins recurved from base to distal portion of leaf;

costa ending before apex, percurrent or occasionally short-excurrent in distal leaves, abaxial surface smooth distally;

laminal cells 12–18 µm;

basal cells 30–90 µm, smooth;

basal marginal cells not distinctly differentiated.

4–14 mm, yellow to yellowish brown.

12–20 mm, reddish brown.

cylindric, 2–3 mm, smooth, constricted below mouth, yellowish brown, exothecial cells rectangular, 50–120 µm;

peristome single, yellowish red to hyaline, 16 teeth, lanceolate, to 0.3 mm high, papillose, erect;

operculum 1–1.5 mm.

2–4 mm, spirally ribbed, brown to brownish yellow, exothecial cells linear, walls thickened along ridges;

peristome double, teeth 16, reddish yellow, linear, 1 mm, papillose, endostome teeth linear from high basal membrane, adhering to exostome, papillose;

operculum 1.5–2 mm.

3–7 mm, fringed at base, smooth or rarely papillose at apex.

4–8 mm, lacerate at base, papillose.

30–40 µm, plicae and pitted, brownish yellow.

14–24 µm, granulate, brownish green.

asexual reproduction absent.

asexual reproduction by rhizoidal gemmae, in tufts on stems, filamentous, branching, brown, smooth.