Flora of North America species comparison

leaves 1.4–1.8 mm, elongate-triangular, lingulate-triangular, hemiisophyllous forms elongate triangular-ovate, 1.4–1.8 mm, apex usually conspicuously toothed, border narrow at base (less than 0.25 width);

hyaline cells narrowly rhombic to S-shaped, can be efibrillose and aporose but more commonly fibrillose and porose, 0–1-septate.

leaves triangular to lingulate-triangular, equal to or more than 0.8 mm, spreading to appressed;

apex acute to apiculate, hyaline cells mostly efibrillose and nonseptate.

turgid and terete, leaves, not 5-ranked.

± straight and somewhat tapered, usually 5-ranked, leaves not greatly elongated at branch distal end.

ovate, 1.1–1.7 mm, slightly concave, straight, apex weakly involute and conspicuously toothed;

hyaline cells on the convex surface with round to elliptic pores along the commissures, grading from moderate-sized pores near apex to large pores at leaf base, concave surface with large round pores throughout.

narrowly ovate-lanceolate, greater than 1.2 mm, straight, slightly undulate and weakly recurved when dry, margins entire;

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

uncertain, monoicous or dioicous or possibly both.

dioicous.

22–25 µm, finely roughened.

24–33 µm; finely papillose on the superficial surface.

fascicles with 2 spreading and 1–2 pendent branches.

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

branch stems green and often reddish at proximal end, with cortex enlarged with conspicuous retort cells.