Flora of North America species comparison

leaves spatulate to broad-spatulate, 0.8–1.5(–2) mm, strongly lacerate across the broad apex and often part way down the margins, border scarcely to strongly broadened at base (0.25 width of base or less);

hyaline cells rhomboid, efibrillose and often 1–2-septate.

leaves to 1.1 × 0.7 mm, commonly hemiisophyllous;

hyaline cells non-ornamented, mostly 1–2-septate.

not 5-ranked, quite terete, long, and slender Branch fascicles with 1– 2 spreading and 1–2 pendent branches.

short and blunt at distal end, leaves loosely spreading.

ovate to ovate-lanceolate; 1.1–1.5(–2) mm, slightly concave, straight;

apex involute;

margins entire;

hyaline cells on convex surface with numerous pores along the commissures grading from small pores near leaf apex to large pores at base, concave surface with large round pores at leaf apex and along margins.

ovate, to 2.2 × 1.1 mm; ovate, hyaline cells non-ornamented, on proximal half of convex surface with small ringed pores or pseudopores in groups of three where the corners join and pseudopores along the commissures; chlorophyllous cells narrowly rectangular, lenticular to narrowly trapezoidal in transverse section; exposed equally on both surfaces or more broadly on concave surface;

end walls not thickened.

often monoicous.

dioicous.

with numerous pseudostomata.

20–27 µm, finely papillose on both surfaces;

proximal laesura less than 0.5 spore radius.

25–39 µm;

surface smooth to irregularly and finely papillose;

indistinct Y-mark on distal surface;

proximal laesura more than 0.6 spore radius.

fascicles with 2 spreading and 1–2 pendent branches.;

branch stems with hyaline cells non-ornamented, no or weak funnel-like projection of end walls of cortical cells, cortical cells with one large pore per cell on superficial wall.