Flora of North America species comparison

1.2–12 cm, central strand weak or absent.

1.5–10 cm, central strand absent or indistinct.

erect or curved, rarely (falcate-) secund when dry, ovate-lanceolate, sharply keeled distally, (1.3–)1.7–2.5(–3.2) mm, 1-stratose or rarely 2-stratose in striae distally;

margins usually recurved throughout or to just before the apex, usually denticulate distally, 1 or 2-stratose;

apices acute or sub-obtuse;

costa percurrent or excurrent as a smooth or weakly denticulate, occasionally decurrent awn, abaxial surface often papillose;

basal marginal cells usually quadrate;

distal laminal cells mostly short-rectangular, 8–10 µm wide, smooth, sinuose.

erect proximally, usually slightly curved distally, rarely somewhat secund when dry, ovate-lanceolate, sharply keeled distally, 1.6–2.5 mm, 1-stratose;

margins usually recurved throughout, denticulate distally, 1- or 2-stratose;

apices acute;

costa percurrent or excurrent as a denticulate, occasionally weakly decurrent awn, abaxial surface papillose;

basal marginal cells quadrate or oblate, often trigonous;

distal laminal cells mostly short-rectangular or quadrate, 8–10 µm wide, papillose, strongly sinuose with reddish or orange walls.

autoicous.

autoicous.

dark red or brown, short-cylindric, 0.7–1.3 mm;

exothecial cells usually quadrate, sometimes mixed with short-elongate or oblate cells, thin-walled, usually trigonous;

stomata present;

peristome patent or erect, often twisted, 350–600(–700) µm, red, densely papillose, usually perforated.

red-brown, sometimes orange-brown, ovoid-cylindric, narrowed to the mouth, 0.7–1.25 mm, rarely striate when old;

exothecial cells mostly isodiametric, mainly more or less quadrate, usually mixed with a few short-elongate or oblate cells, thin-walled, with small trigones;

stomata present;

peristome patent or erect, dark-red or red, 190–380 µm, densely papillose, entire or slightly perforated.

11–14(–19) µm, granulose or smooth.

10–14 µm, granulose.