Flora of North America species comparison

leaves to 1.2 × 0.8 mm; rarely hemiisophyllous;

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

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.

short and blunt-tipped, leaves spreading.

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

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.

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.

unknown.

unknown.

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 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.

fascicles with 2 spreading and 2 pendent branches.;

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