Flora of North America species comparison

leaves 1.2–1.6 × 1 mm; rarely hemiisophyllous;

hyaline cells nonseptate or more typically mostly septate, comb-lamellae present on interior wall.

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.

clavate, tapering to short point, tightly imbricate at proximal end to somewhat spreading at distal end in less compact forms.

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

ovate-elliptical to elliptical, 1.5–2.1 × 0.8–1.4 mm;

hyaline cells on convex surface with numerous moderate-sized round pores along the commissures, comb-lamellae present throughout most of leaf; chlorophyllous cells broadly triangular in transverse section and well-enclosed on the convex surface, end wall not thickened.

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 scattered pseudostomata.

23–28 µm; coarsely granulate on both surfaces;

proximal laesura more than 0.50 spore radius.

25–28 µm; roughly papillous on both surfaces;

proximal laesura more than 0.5 the length of the spore.

fascicles with 2 spreading and 1 pendent branch.;

branch stems with cortical cell comb-lamellae visible on interior wall, conspicuous funnel-like projection on interior end walls extending to next cell less than one half its length, pores in superficial wall restricted to leaf bases.

fascicles with 2 spreading and 2 pendent branches.;

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