Flora of North America species comparison

0.5–6 cm, densely tomentose with light brown to reddish brown rhizoids.

3–7 cm, densely tomentose with reddish brown rhizoids.

falcate-secund to nearly straight, crisped to weakly crisped when dry, smooth, (1–)2–4(–5) × 0.3–0.6 mm, concave below, tubulose above, from a lanceolate or ovate-lanceolate base to an acuminate subula, apex acute;

margins smooth to serrulate above;

laminae 1-stratose;

costa percurrent or sometimes ending just before apex, 1/6–1/4 the width of the leaves at base, smooth to ± rough with papillae or small teeth on abaxial surface near apex of leaf, abaxial ridges absent, with a row of guide cells, two stereid bands above and below not extending above the leaf middle, adaxial epidermal layer of cells not differentiated, the abaxial layer with some cells differentiated;

cell walls between lamina cells not bulging;

leaf cells smooth or weakly abaxially prorate above;

alar cells 1-stratose, distinctly differentiated, not extending to costa;

proximal laminal cells elongate-rectangular, not pitted or with few pits, (12–)24–38(–70) × (4–)10–15(–18) µm;

distal laminal cells short-rectangular to quadrate, not pitted, (5–)12–14(–23) × (5–)7–12(–14) µm. Sexual condition dioicous;

male plants as large as females;

interior perichaetial leaves abruptly long-acuminate, convolute-sheathing.

erect-spreading, strongly cirrate to crisped when dry, smooth, (4–)5–6.5(–8) × 0.5–1 mm, concave below, tubulose above, lanceolate, acute;

margins entire below, slightly serrate to entire above;

laminae 1-stratose;

costa excurrent, 1/6–1/4 the width of the leaves at base, smooth or weakly toothed above on abaxial surface, abaxial ridges absent, with a row of guide cells, two stereid bands extending to the apex, adaxial and abaxial epidermal layers of cells differentiated;

cell walls between lamina cells slightly bulging;

leaf cells smooth to slightly rough above on abaxial surface;

alar cells 2-stratose, differentiated, sometimes extending to costa;

proximal laminal cells rectangular, pitted, (19–)37–55(–73) × (5–)9–12(–14) µm;

distal laminal cells short, irregularly quadrate-rectangular, not pitted, (7–)11–12(–23) × (6–)8–9(–13) µm. Sexual condition pseudomonoicous;

dwarf males on stem rhizoids of female plants;

interior perichaetial leaves abruptly short-acuminate, convolute-sheathing.

1–2.5 cm, solitary, yellowish to brown.

1.3–3 cm, solitary, yellowish to yellowish brown.

1.5–3 mm, straight and erect or nearly so, striate when dry, yellowish brown to brown;

operculum 0.5–l.6 mm.

2–4 mm, long-cylindric, arcuate and inclined to ± straight and nearly erect, smooth, striate when dry, yellowish brown;

operculum 1.5–2.5 mm.

12–19 µm.

14–24 µm.