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 falcate to circinate-secund, oblong-ovate to oblong-lanceolate, narrowed to apex, 1.5–2 × 0.4–0.6 mm;

base not decurrent, not auriculate;

margins plane, sinuate to weakly serrate;

acumen slender;

costa single, or double and unequal, short to long;

alar cells quadrate to short-rectangular, dark brown, region well defined, weakly to markedly excavate, 3–7 cells high along margin, to 3–6 cells wide;

basal laminal cells shorter than medial cells, yellow to orange, walls more strongly pitted;

medial cells 30–60 × 4–6 µm, walls somewhat to markedly pitted.

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, 1.3–2 cm.

dioicous;

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

dioicous;

inner perichaetial leaves ovate to oblong-lanceolate, margins laciniate at shoulders, entire at apex, acumen slender.

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, yellowish, oblong-cylindric, 1.3–1.5 mm;

annulus 3-seriate;

operculum conic;

endostome cilia 2 or 3.