Flora of North America species comparison

leaves much smaller than branch leaves, triangular-lingulate, border entire and broadened at base;

hyaline cells rhomboid, efibrillose, nonornamented, aporose, and usually nonseptate;

hyaline cells not resorbed on either surface.

leaves very small, less than 0.8 mm, triangular with blunt rounded apex.

strongly dimorphic, spreading branches much stronger than pendent branches.

erect in distal portion of plants.

ovate to ovate-lanceolate, apex broadly truncate, smooth and toothed;

margin denticulate;

hyaline cells fibrillose, smooth or papillose, convex surface with ± 5 small to medium-sized free pores, sometimes numerous pseudopores, concave surface with large pores in cell angles; chlorophyllous cells elliptic to ovate-triangular in transverse section, completely enclosed or exposed on concave surface, end walls unthickened.

large, 2.8 mm or longer, sub-squarrose, ovate, involute to broad, truncate apex with more than 6 teeth;

hyaline cells with up to 6 non-ringed pores on convex surface with few or no pseudopores, 2–4 elliptic ringed pores on concave surface in corners or along commissures, internal commissural walls minutely papillose (best viewed in oblique sections), rarely smooth; chlorophyllous cells narrowly triangular in transverse section, more broadly exposed on convex surface, enclosed on concave surface.

monoicous or dioicous.

monoicous.

2 mm or less, with numerous pseudostomata.

with abundant pseudostomata on surface of capsule.

mean diameter more than 30 µm, raised Y-mark sculpture on distal surface;

proximal laesura more than 0.3 spore radius.

31–43 µm; coarsely papillose on both proximal and distal surfaces, raised Y-mark sculpture on distal surface;

proximal laesura moderately long, 0.4–0.7 spore radius.

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

branch stems green, green to brownish, surrounded by 1 layer of efibrillose, non-ornamented, inflated, thin-walled, uniporse cells with slight protruding necks.

fascicles with 2 short-spreading and 3 long-tapering pendent branches.