Flora of North America species comparison

leaves irregularly twisted or curved, loosely spiraled around stem and ± undulate when dry, spreading to wide-spreading, sometimes subsquarrose, recurved when moist, oblong-lanceolate to broadly lanceolate, 0.7–2 mm;

margins entire to ± sharply serrulate near apex;

apex sharply acute, apiculus usually present;

costa ending near apex, abaxial surface smooth or covered by cells only at apex;

basal laminal cells short-rectangular;

distal cells 5–11 µm, papillae 3–6 per cell, walls somewhat thick.

leaves loosely erect and not contorted when dry, spreading to ± recurved when moist, oblong-lanceolate, 1–1.7 mm;

margins entire;

apex broadly acute, apiculus abrupt;

costa ending near apex, abaxial surface covered by cells distally;

basal laminal cells subquadrate to short-rectangular;

distal cells 9–14 µm, papillae 2–4 per cell, walls somewhat thick.

synoicous or autoicous.

dioicous.

17–22 µm.

asexual reproduction by clavate to elliptic gemmae, longitudinal walls usually absent.

asexual reproduction by cylindric to fusiform gemmae, longitudinal walls absent.

unknown.