Flora of North America species comparison

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.

leaves triangular to triangular-lingulate, 0.9–1.1 mm; appressed to spreading;

apex apiculate, acute or narrowly obtuse, appressed to spreading;

hyaline cells nonseptate and efibrillose.

typically long and tapering, not 5-ranked.

straight to more typically curved, typically stout and blunt ended; strongly 5-ranked, leaves not much elongate at distal end.

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.

ovate to ovate-lanceolate, 1.4–1.8 mm; straight to often subsecund; weakly undulate and slightly recurved;

hyaline cells on convex surface with 1 pore per cell at apical end of cell, on concave surface with round wall thinnings in the cells ends and angles; chlorophyllous cells triangular to triangular-ovate in transverse section, very well-enclosed within concave surface.

dioicous.

dioicous.

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

proximal laesura less than 0.5 spore radius.

25–28 µm; roughly papillous on both surfaces;

proximal laesura more than 0.5 the length of the spore.

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

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

fascicles with 2 spreading and 2 pendent branches.;

branch stems green but often reddish at proximal end, with cortex enlarged with conspicuous retort cells.