Flora of North America species comparison

1–8+ cm, pale to yellowish green, brown with age, creeping to erect, complanate-foliate or not, irregularly pinnate to nearly unbranched, attached shoots often regularly pinnate, branches 1–3 cm;

hyalodermis absent, central strand poorly developed;

pseudoparaphyllia filamentous, 1–3-seriate at base.

leaves strongly hamate and falcate-secund, ovate-lanceolate, gradually tapering to insertion, gradually narrowed to apex, 1.3–1.5 × 0.4–0.5 mm;

base sometimes weakly decurrent;

margins plane, usually entire, weakly toothed toward apex;

apex narrowly acuminate;

costa double, short or sometimes to 1/2 leaf length;

alar region rarely differentiated except at margin and near insertion, with 2 or 3 slightly larger, thin-walled cells;

basal laminal cells shorter, broader than medial cells, unpigmented, walls not pitted;

medial cells 40–60(–70) × 3–4 µm.

strongly imbricate, not to decidedly falcate-secund, ovate to oblong-lanceolate, gradually or abruptly narrowed to apex, 1.5–2 × 0.5–0.8 mm;

base not decurrent, not auriculate;

margins recurved to plane proximally, serrulate (sometimes weakly) distally, occasionally nearly entire;

acumen slender;

costa double and short or obscure;

alar region well defined, basalmost cells larger, sometimes hyaline, yellowish or brownish;

basal laminal cells shorter, wider than medial cells, not pigmented, walls not pitted;

medial cells (50–)60–80 × 3–4(–5) µm.

reddish, 1–2.5(–3) cm.

reddish, 1–2 cm.

dioicous;

inner perichaetial leaves oblong-lanceolate, margins serrulate distally, costa obscure.

phyllodioicous;

inner perichaetial leaves ovate-lanceolate, margins toothed distally, apex attenuate.

slightly inclined, reddish, cylindric, 1.8–2.5(–2.8) mm;

annulus 1–3-seriate;

operculum conic to rostrate;

endostome cilia 1–2(–3).

inclined to horizontal, brown, long-cylindric, 1.5–1.8 mm;

annulus 2- or 3-seriate;

operculum conic;

endostome cilia 1 or 2.