Flora of North America species comparison

6 cm, 2–4 mm wide, complanate-foliate; rarely radiculose ventrally.

wide-spreading to squarrose, usually distant, ovate- or oblong-lanceolate, rarely narrowly ovate, symmetric or nearly so, flat or somewhat concave, 1–2 × 0.3–0.6 mm;

margins very narrowly recurved almost to apex, sometimes plane, serrulate throughout;

apex acuminate or abruptly narrowed to acute or rarely subobtuse, not twisted;

costa double and short or ecostate;

alar cells few, long- to short-rectangular, rarely quadrate, 37–63 × 5–9 µm, in 1–3 rows, 1–5 cells in marginal row;

laminal cells smooth or prorulose at distal ends on abaxial surface;

medial cells 66–120 × 3–7 µm.

reddish, 0.7–1.2 cm.

reddish, oblong-ovoid, arcuate, 1–1.5 mm;

operculum 0.5–1 mm.

11–13 µm.