Flora of North America species comparison

leaves triangular-lingulate to lingulate, 1.1–1.4 mm, apex broad-rounded to narrowly truncate, border very broad at base (more than 0.3 width);

hyaline cells efibrillose, rhombic, mostly 1-septate but can be non-septate.

pale green to yellowish;

superficial cortex of 2 layers of enlarged, thin-walled and well differentiated cells.;

stem leaves triangular, triangular-lingulate to lingulate, more than 0.8 mm, appressed, apex obtuse to broadly obtuse, erose to fimbriate;

hyaline cells efibrillose and nonseptate.

long and tapering, usually strongly 5-ranked.

straight and often tapering, often 5-ranked, leaves not much elongate at distal end of branches.

ovate-lanceolate, 0.9–1.4 mm, concave, straight, apex involute;

hyaline cells on convex surface with very small ringed pores (less than 0.25 cell width) along commissures near apex, changing abruptly to large elliptical pores (0.4 cell width or more) basally, concave surface with large round pores in proximal margins and leaf base.

ovate-lanceolate, 1.4–2 mm, straight; slightly undulate and sharply recurved;

margins entire;

hyaline cells on convex surface with 1 pore per cell at cell apex, concave surface with round wall thinnings in the cell ends and angles; chlorophyllous cells triangular in transverse section and well-enclosed on concave surface.

dioicous.

dioicous.

17–26 µm, finely papillose on both surfaces;

proximal laesura less than 0.5 spore radius.

22–28 µm;

papillose on both surfaces;

proximal laesura more than 0.5 spore radius.

fascicles with 2 spreading and 1–2 pendent branches.

fascicles with 2 spreading and 2 pendent branches.;

branch stems green, cortex enlarged with conspicuous retort cells.