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 to lingulate-triangular, 0.8–1.2 mm, mostly appressed to the stem, apex acute to apiculate, hyaline cells mostly efibrillose and nonseptate.

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

straight, mostly unranked, but can be 5-ranked in wet-growing forms, leaves little elongated at distal branch ends.

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, greater than 1.2 mm, straight, undulate and sharply recurved when dry, margins entire;

hyaline cells on convex surface with usually 1 round pore per cell at apical end, on concave side with round wall thinnings in the cell ends and angles; chlorophyllous cells triangular and just reaching or slightly enclosed within the concave surface.

dioicous.

dioicous.

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

proximal laesura approximately 0.5 spore radius.

25–31 µm;

proximal surface finely papillose, distal surface pusticulate with bifurcated Y-mark sculpture;

proximal laesura less than 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 spreading and 2–3 pendent branches.;

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