Flora of North America species comparison

leaves triangular-lingulate to broadly lingulate, 0.9–1.3 mm, apex broadly rounded to obtusely angled, border very strong and broad at base (more than 0.4 width);

hyaline cells rhombic, efibrillose, most 0–1-septate.

leaves lingulate to triangular-lingulate, 0.9–1.2 mm, apex rounded, usually 1/3–1/2 of leaf fibrillose;

hyaline cells usually fibrillose in distal 1/3–1/2 of leaf, on convex surface near apex with 1–3 pores per cell, on concave surface near apex 1–4 pores per cell.

long, tapering, imbricate, not 5-ranked.

arched but rarely curved and contorted.

ovate, 2–2.5 mm, concave, straight, apex involute;

hyaline cells on convex surface with elliptic pores along the commissures grading from moderate-sized pores near leaf apex to large pores at the base, concave surface with large round pores in proximal portions of leaf.

ovate, 1–1.5 mm, straight to slightly subsecund;

hyaline cells of convex surface with numerous ringed pores along the commissures (12–22 per cell), 0–3 pores per cell on the concave surface.

monoicous.

with few pseudostomata.

23–31 µm, irregularly coarsely papillose on both surfaces;

proximal laesura less than or equal to 0.5 spore radius

30–37 µm; finely papillose on both surfaces, indistinct raised Y-shaped sculpture on distal surface;

proximal laesura 0.5 spore radius or less.

fascicles with 2 spreading and 1–2 pendent branches.

fascicles with 2–3 spreading and 2–3 pendent branches.