Flora of North America species comparison

leaves 0.7–1 mm (to 1.2 mm in hemiisophyllous forms) elongate-triangular to triangular-lingulate, apex obtuse-erose, to apiculate; usually fibrillose at least apically; in hemiisophyllous forms spreading and in anisophyllous forms appressed;

hyaline cells often septate at base.

brown, superficial cortical cells aporose.;

stem leaves lingulate, 1.1–1.2 mm, apex slightly apiculate to mostly broad and erose to lacerate, border only slightly broadened at base;

hyaline cells rhomboid and 0–1-septate.

moderately long and tapering, unranked to weakly 5-ranked, leaves not much elongated at distal end.

more or less 5-ranked.

1–1.7 mm, ovate-lanceolate, undulate and recurved when dry;

hyaline cells on convex surface with 3–10 round pores per cell in the cell angles and free, on concave surface with round wall thinnings in the ends and angles.

0.95–1.3 mm, ovate to ovate-lanceolate, concave, straight to slightly subsecund, apex involute;

hyaline cells on convex surface with numerous surface with numerous round to elliptic pores along the commissures, grading from large pores at the base to a mixture of small and tiny (2 µm) at the apex, concave surface with a few large, round pores/cell in lower side regions.

unknown.

unknown.

not seen.

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

branch stem cortex enlarged and with conspicuous retort cells.

fascicles with 2 spreading and 1 pendent branch.