Flora of North America species comparison

leaves 0.8–1.1 mm, triangular-lingulate to lingulate, concave, spreading, apex broadly obtuse, hyaline cells fibrillose in apical region.

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.

slender and tapering, often 5-ranked and decurved, leaves somewhat elongated at distal end.

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

ovate-lanceolate, 1–1.7 mm, straight, slightly undulate and spreading;

margin entire, hyaline cells on convex surface with 1–5 pores in cell ends and free near apex, on concave surface with round wall thinnings in cell ends and angles; chlorophyllous cells triangular in transverse section and well-enclosed on concave 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.

dioicous.

dioicous.

25–33 µm; smooth to finely papillose on both surfaces;

proximal laesura approximately 0.5 spore radius.

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

proximal laesura approximately 0.5 spore radius.

fascicles with 2 spreading and mostly 1 pendent branch.;

branch stem green, cortex enlarged with conspicuous retort cells.

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.