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.

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.

terete.

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

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-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.

dioicous.

dioicous.

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

25–31 µm;

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

proximal laesura less than 0.5 spore radius.

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

branch stems with 1–2 layers of cortical cells.

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

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