Flora of North America species comparison

green to red;

superficial cortical cells aporose Stem leaves lingulate-triangular, 1.2–1.6(–1.8) mm, apex ± involute;

border entire and broadened to about 0.25 the width of the base;

hyaline cells S-shaped, 0–1-septate, usually fibrillose in distal portion of leaf.

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

not 5-ranked, terete.

terete.

ovate-lanceolate, 1–1.4 mm, imbricate to moderately spreading, concave, straight, strongly involute near apex;

hyaline cells on convex surface with elliptic pores along commissures, concave surface with large round pores away from commissures in proximal portions of leaf.

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.

dioicous.

dioicous.

20–28 µm; finely papillose on both surfaces, with distinct raised Y-shaped sculpture on distal surface;

proximal laesura 0.5 spore radius or more.

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

fascicles with 2 spreading and 1–2 pendent branches.

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

branch stems with 1–2 layers of cortical cells.