Flora of North America species comparison

leaves shorter than branch leaves, 0.8–1.6 mm, lingulate, hyaline cells non-septate above and commonly 1-septate below.

leaves to 1.7 × 1.2 mm; rarely hemiisophyllous;

hyaline cells nonseptate to occasionally septate, comb-lamellae absent.

short and blunt, branch leaves imbricate.

long and tapering.

0.9–2 mm, ovate, with conspicuously truncate apex, hyaline cells bulging on both surfaces, with 1–4 large circular to elliptic pores per cell on convex surface and 4–7 elliptic pores per cell on concave surface, internal commissural walls faintly papillose, cholrophyll cells elliptical to elliptical-ovate withn the broadest part typically some distance from convex surface.

broadly ovate, to 3 × 2.3 mm;

hyaline cells on proximal half of convex surface with elliptical pores along the commissures, often with ridges running parallel to long leaf axis on hyaline cell surface overlying chlorophyllous cells; chlorophyllous cells elliptical and just enclosed on both surfaces in transverse section;

end walls not thickened.

unknown.

dioicous.

not seen.

unknown.

fascicles typically with 2 spreading and 2 hanging branches.;

branch stems with single layer of cortical cells.

fascicles with 2 spreading and 2 pendent branches.;

branch stems with hyaline cells non-ornamented, no or weak funnel-like projections on the interior end walls, often with large round pores on the superficial wall.