Flora of North America species comparison

leaves short-rectangular, 0.8–1.1 mm, hyaline cells mostly non-septate and absent comb-fibrils.

leaves triangular-lingulate to lingulate, 0.7–1.3 mm, appressed to stem, apex obtuse to broadly obtuse and erose to somewhat lacerate, hyaline cells efibrillose and nonseptate.

curved, unranked to less commonly (in wet-grown forms) 5-ranked, leaves not much elongate at distal end.

ovate to ovate-elliptic, 1.4–1.8 mm;

hyaline cells on convex surface with numerous pores along the commissures;

comb-lamellae obvious only in proximal 1/2 of leaf; chlorophyllous cells broadly triangular in transverse section and well-enclosed on the convex surface.

ovate-lanceolate to broadly ovate-lanceolate, 1.5–2.5 mm, strongly undulate and moderately recurved when dry, straight;

margin entire;

greater than hyaline cells on convex surface with 1–2 pores per cell at cell apex, on concave surface with round wall thinnings in the cell ends and angles; chlorophyllous cells triangular in transverse section and typically just slightly exposed on the concave surface.

dioecious.

dioicous.

(22) 24–27(–28) µm, surface granulate.

23–25 µm; moderately to coarsely papillose on both surfaces;

proximal laesura approximately 0.5 spore radius.

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

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(–3) spreading and 2 pendent branches.;

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