Flora of North America species comparison

leaves generally longer than branch leaves, 1.1–1.7 mm, lingulate to lingulate-spathulate, hyaline cells mostly non-septate.

pale green;

superficial cortex of 1–2 layers of thin-walled and well differentiated cells.;

stem leaves large, ovate to oblong-ovate, ca. 2 mm, more or less spreading;

apex rounded and serrulate;

hyaline cells fibrillose and often 1–septate, convex surface generally aporose, concave surface with 1–several round pores per cell in ends and angles.

terete.

unranked to slightly 5-ranked, often short and blunt at distal end.

1–1.4 mm, broadly ovate, with a narrow involute tip;

hyaline cells only slightly bulging on either surface, in proximal half of leaf aporose on convex surface and with large faint pores on concave surface;

internal commissural walls distinctly papillose; chlorophyllous cells elliptical to elliptical-triangular in transverse section, enclosed on both surfaces with the widest part in the leaf middle.

ovate to oblong-quadrate, 1.2–2.5 mm, not undulate or recurved when dry, strongly toothed across apex and serrulate on margins;

hyaline cells with to 4 small round ringed pores at cell ends on convex surface, small round wall thinnings in the cell ends and angles on the concave surface; chlorophyllous cells trapezoidal in transverse section, more broadly exposed on the convex surface.

dioicous.

monoicous.

ca. 31 µm, ornamented by small somewhat amalgamated granulae.

38–48 µm;

both surfaces covered with fine to moderately coarse papillae;

proximal laesura less than 0.4 spore radius.

fascicles of 2 spreading and 1–2 hanging branches.;

branch stems with 1–2 layers of cortical cells.

fascicles with 1–2 spreading and 0–1 pendent branches.;

branch stems green, with cortex enlarged with conspicuous retort cells.