Flora of North America species comparison

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.

leaves triangular, 0.7–0.9 mm, appressed to stem;

apex apiculate;

hyaline cells efibrillose and nonseptate.

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

moderately tapering, leaves only moderately larger at branch tips.

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.

ovate-lanceolate, 1–1.4 mm; straight;

stiff, not undulate and slightly recurved;

margins entire;

hyaline cells efibrillose, convex surface with 1 pore 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 well enclosed to just reaching concave surface.

dioicous.

unknown.

25–31 µm;

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

proximal laesura less than 0.5 spore radius.

unknown.

fascicles with 2 spreading and 2–3 pendent branches.;

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

fascicles with 2 spreading and 2 pendent branches.;

branch stems green;

cortex enlarged with conspicuous retort cells.