Flora of North America species comparison

leaves to 2 × 0.7 mm; rarely hemiisophyllous;

hyaline cells non-ornamented, mostly nonseptate.

leaves triangular to triangular-lingulate, 0.9–1.1 mm; appressed to spreading;

apex apiculate, acute or narrowly obtuse, appressed to spreading;

hyaline cells nonseptate and efibrillose.

long and tapering to short and pointed, leaves loosely imbricate.

straight to more typically curved, typically stout and blunt ended; strongly 5-ranked, leaves not much elongate at distal end.

broadly ovate, to 2 × 1 mm or more wide, broadly ovate, hyaline cells non-ornamented, convex surface with round to elliptic pores along the commissures; chlorophyllous cells short-elliptic in transverse section and well-enclosed on both surfaces.

ovate to ovate-lanceolate, 1.4–1.8 mm; straight to often subsecund; weakly undulate and slightly recurved;

hyaline cells on convex surface with 1 pore per cell at apical end of cell, on concave surface with round wall thinnings in the cells ends and angles; chlorophyllous cells triangular to triangular-ovate in transverse section, very well-enclosed within concave surface.

dioicous.

dioicous.

with numerous pseudostomata.

22–30 µm; roughly papillose to nearly smooth, with distinct Y-mark sculpture on distal surface;

proximal laesura 0.5–0.8 spore radius.

25–28 µm; roughly papillous on both surfaces;

proximal laesura more than 0.5 the length of the spore.

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

branch stems with hyaline cells non-ornamented;

no or weak funnel-like projections on the interior end walls, large round pores on superficial cell walls.

fascicles with 2 spreading and 2 pendent branches.;

branch stems green but often reddish at proximal end, with cortex enlarged with conspicuous retort cells.