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 to 1.3 × 0.7 mm; rarely hemiisophyllous;

hyaline cells non-ornamented, mostly septate.

straight and short.

generally short and blunt, leaves spreading.

ovate, 1.3–1.7 mm;

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

broadly ovate, 1.7 × 1 mm;

hyaline cells on convex surface with round to elliptic pores along the commissures, hyaline cell walls covered with papillae where overlying chlorophyllous cells; chlorophyllous cells trapezoidal to truncate-elliptic in transverse section, equally exposed on both surfaces or less exposed on convex surface, end walls thickened.

unknown.

dioicous.

not seen.

with numerous pseudostomata.

not seen.

26–36 µm; more roughly papillose on distal surface than proximal surface, distinct raised, bifurcated-Y mark sculpture on distal surface;

proximal laesura 0.5 spore radius or more.

fascicles nearly all with 2 spreading branch only.

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

branch stems with hyaline cells non-ornamented, no or weak funnel-like projections on the interior end walls, mostly with 1 pore per cell on superficial cell wall.