Flora of North America species comparison

leaves isophyllous, ovate to ovate-lanceolate, 2.2–2.8 mm;

apex rounded;

hyaline cells nonseptate, convex surface with 6–12 pores per cell along commissures, concave surface aporose.

leaves broadly lingulate-spathulate to spatulate, widest at base and/or distal third, usually narrower in the mid region, 1–1.3 mm, apex narrowly to broadly truncate and ± fimbriate-lacerate, border narrow distally and expanded proximally to 0.25 width or more;

hyaline cells efibrillose, irregularly rhombic to subquadrate, many cells 2–4-septate.

straight and short.

unranked.

ovate, 1.3–1.7 mm;

hyaline cells on convex surface with 8–18 elliptic pores more than 8 µm, concave surface aporose.

ovate-lanceolate, 1.1–1.4 mm, slightly concave, straight, apex involute;

hyaline cells on convex surface grading from aporose to few small round pores near apex to numerous semi-elliptic pores along commissures in middle and base of leaf, concave surface with a few large irregular to circular pores (1–4) occupying most of the cell width.

unknown.

autoicous.

not seen.

not seen.

20–27 µm, moderately granulate-papillose on both surfaces, distinct raise Y-mark sculpture on distal surface;

proximal laesura less than or equal to 0.5 spore radius.

fascicles nearly all with 2 spreading branch only.

fascicles with 3(4–5) spreading branches and 1–2 pendent branches.