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 equilateral triangular, 0.8–1.1 mm; often spreading;

apex more or less obtuse;

leaves often spreading;

hyaline cells usually septate and often fibrillose in proximal half of leaf.

straight and short.

unranked, ± straight, leaves moderately elongated at distal end.

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, less than 2.2 mm, straight; undulate and sharply recurved when dry;

margins entire;

hyaline cells on convex surface with 0–1 apical pores and often with pseudopores, concave surface with to 12 round wall thinnings in cell angles and sometimes along commissures; chlorophyllous cells triangular in transverse section, just enclosed on the concave surface and broadly exposed on the convex surface.

unknown.

unknown.

not seen.

not seen.

not seen.

fascicles nearly all with 2 spreading branch only.

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

branch stems green, with cortex enlarged with conspicuous retort cells.