Flora of North America species comparison

to 6 cm, subpinnate, branches complanate-foliate.

to 8 cm, subpinnate, branches complanate-foliate.

erect to erect-spreading, broadly oblong-ovate, 2 mm (branch leaves 1.5–1.8 mm);

margins plane, entire proximally, serrulate and often notched distally;

apex gradually acute;

costa double, short;

alar region ± abruptly differentiated, 1-stratose, not reaching costa.

erect-spreading, oblong-ovate, 1.2–2 mm (branch leaves slightly smaller);

margins plane, entire or with 1 or 2 teeth at extreme apex;

apex broadly acute; ecostate or costa double, short;

alar region ± abruptly differentiated, 1-stratose, not reaching costa.

reddish, 0.7–2 cm.

reddish, 0.4–1.5 cm.

autoicous.

autoicous.

cylindric, 2–3 mm;

annulus 1–3-seriate, deciduous;

operculum long-conic to bluntly obliquely rostrate;

exostome teeth reddish, external surface coarsely papillose proximally, finely papillose apically, often perforate;

endostome segments smooth to slightly roughened.

cylindric, 1.2–2.2 mm;

annulus 2–4-seriate, persistent;

operculum obliquely long-rostrate;

exostome teeth reddish, external surface densely papillose proximally, finely papillose apically, not perforate;

endostome segments densely papillose.

13–20 µm.

11–15 µm.