Flora of North America species comparison

to 10 cm, subpinnate, branches terete-foliate.

to 10 cm, subpinnate, branches complanate-foliate.

erect, oblong-ovate to elliptic, 1–2 mm;

margins plane, entire proximally, weakly serrulate distally;

apex abruptly acute to apiculate; ecostate or costa double, short;

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

erect to spreading, oblong-lanceolate to oblong-ovate, widest near insertion, 1.4–2 mm;

margins plane, entire proximally, serrulate distally;

apex acute; ecostate or costa double, very short;

alar region gradually differentiated, 1-stratose, ± reaching costa.

reddish, 0.5–1.6 cm.

yellow, 1–3 cm.

autoicous.

autoicous.

cylindric, 2–3.5 mm;

annulus 2- or 3-seriate, persistent;

operculum obliquely rostrate;

exostome teeth reddish, external surface smooth or faintly roughened proximally, finely papillose apically, not perforate;

endostome segments smooth.

long-cylindric, 2–4 mm;

annulus not differentiated;

operculum bluntly short-rostrate;

exostome teeth reddish, external and internal surfaces irregularly striate throughout, perforate;

endostome segments striate to coarsely papillose proximally, papillose at extreme apex.

13–21 µm.

12–16 µm.