Flora of North America species comparison

40–80 mm;

central strand small.

to 20 mm, central strand absent.

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.

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.

12–20 mm, reddish brown.

4–14 mm, yellow to yellowish brown.

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.

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.

4–8 mm, lacerate at base, papillose.

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

14–24 µm, granulate, brownish green.

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

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

asexual reproduction absent.