Flora of North America species comparison

leaves triangular to triangular-lingulate, 1–1.3 mm, apex acute to slightly obtuse, border broad at base (more than 0.25 width);

hyaline cells narrowly rhomboid, mostly 0–1-septate and mostly efibrillose.

leaves to 1.2 × 0.8 mm; rarely hemiisophyllous;

hyaline cells mostly nonseptate, comb-lamellae usually absent, but sometimes weak.

usually strongly 5-ranked.

short and blunt-tipped, leaves spreading.

ovate to ovate-lanceolate, 1.1–1.5 mm, concave, straight, apex slightly involute;

hyaline cells on convex surface with numerous oval to elliptic pores along commissures grading from small pores near apex to large round pores at base, concave surface with large round pores in proximal portions of leaf.

ovate to ovate-elliptical, 1.6–2.2 × 1 mm;

hyaline cells on proximal half of convex surface with round to elliptic pores along the commissures;

comb-lamellae on hyaline cell wall where overlying chlorophyllous cells; chlorophyllous cells broadly triangular in transverse section and well-enclosed on convex surface, end wall not thickened.

monoicous or dioicous.

dioicous.

unknown.

19–27 µm, finely papillose on proximal surface, pusticulate on distal surface;

proximal laesura less than 0.4 spore radius.

unknown.

fascicles with mostly 3 spreading and 1–2 pendent branches.

fascicles with 2 spreading and 1 pendent branch.;

branch stems with hyaline cells non-ornamented, no or weak funnel-like projections on the end walls of cortical cells, cortical cell walls usually with large round pores.