Flora of North America species comparison

2 cm, 0.5–2 mm wide, ascending to erect.

3 cm, 1.5–2.5 mm wide, creeping.

loosely imbricate to somewhat spreading, often squarrose, sometimes squarrose-recurved, usually straight at stem and branch apices, not plicate, 0.6–2 × 0.3–0.8 mm;

base distinctly decurrent;

margins serrulate to strongly serrate;

alar cells rounded to oval, abruptly inflated, 14–65 × 14–24 µm, hyaline, sometimes orange to red;

basal laminal cell walls pitted, sometimes pitted to mid leaf or beyond;

medial cells 24–50 × 4–7 µm. Sexual condition autoicous.

squarrose-spreading, sometimes erect-spreading, usually appearing distichous and complanate due to twisting of leaves to form 2 rows on opposite sides of stems and branches, not or weakly plicate, 1–2 × 0.3–0.7 mm;

base not decurrent or sometimes 1–3 short cells indistinctly decurrent;

margins serrulate to serrate;

alar cells quadrate to short-rectangular on margins, sometimes 1 cell at extreme basal angle, rounded to oval and inflated, 14–34 × 9–22 µm, green;

basal laminal cell walls pitted, indistinctly pitted distally, sometimes pits absent;

medial cells 43–80 × 3–6 µm. Sexual condition autoicous.

light brown to red, 0.9–2 cm.

light brown to red, 1.2–2 cm.

inclined to nearly erect, light brown, oblong to cylindric, slightly arcuate to straight, 1–2 × 0.3–0.5 mm, not or little contracted below mouth when dry;

operculum conic to conic-apiculate, 0.3–0.4 mm.

inclined, light brown, oblong to cylindric, slightly arcuate, 0.8–2 × 0.3–0.6 mm, contracted below mouth when dry;

operculum conic to conic-apiculate, 0.3–0.4 mm.

10–15 µm.

10–15 µm.