Flora of North America species comparison

leaves triangular to lingulate-triangular, 0.8–1.2 mm, mostly appressed to the stem, apex acute to apiculate, hyaline cells mostly efibrillose and nonseptate.

leaves lingulate, broadly lingulate to lingulate-spatulate; 0.8–1.3 mm, apex broad, truncate and lacerate, border broad at base (more than 0.25 of base);

hyaline cells rhomboid, efibrillose, and rarely septate.

straight, mostly unranked, but can be 5-ranked in wet-growing forms, leaves little elongated at distal branch ends.

typically long and tapering, not 5-ranked.

ovate-lanceolate, greater than 1.2 mm, straight, undulate and sharply recurved when dry, margins entire;

hyaline cells on convex surface with usually 1 round pore per cell at apical end, on concave side with round wall thinnings in the cell ends and angles; chlorophyllous cells triangular and just reaching or slightly enclosed within the concave surface.

ovate to ovate-lanceolate, 1–1.4(–1.8) mm, concave, straight, apex strongly involute, margins entire;

hyaline cells on convex surface with numerous elliptic pores along the commissures, grading from small pores near the apex to large pores near the base, concave surface with large round pores along the margins and base.

dioicous.

dioicous.

25–31 µm;

proximal surface finely papillose, distal surface pusticulate with bifurcated Y-mark sculpture;

proximal laesura less than 0.5 spore radius.

21–27 µm, moderately to coarsely papillose on both surfaces;

proximal laesura less than 0.5 spore radius.

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

branch stems green but proximal end sometimes red, with cortex enlarged with conspicuous retort cells.

fascicles with 2 spreading and 1–2 pendent branches.;

branch stem with solitary retort cells or in groups of 2–3, necks moderately distinct.