Flora of North America species comparison

leaves spreading-incurved and twisted to incurved-appressed when dry, spreading to spreading-recurved and not keeled when moist, monomorphic, short-lanceolate or sometimes short-ovate to long-elliptic, broadly concave adaxially across leaf, usually 1–2.5 mm, base scarcely differentiated in shape to ovate, margins usually recurved at mid leaf, entire, apex broadly acute or occasionally narrowly so, not fragile;

costa percurrent or ending a few cells below the apex, broader at mid leaf, occasionally weakly spurred, with a low adaxial pad of cells, adaxial costal cells quadrate, 4–6 cells wide at mid leaf, guide cells in 1–2 layers;

basal laminal cells differentiated medially or across leaf, quadrate to short-rectangular, walls very thin and not perforated;

distal laminal cells 7–12 wide, 1:1 or occasionally transversely elongate below, papillae usually distinct, low or simple to 2-fid, occasionally absent, lumens oval to rounded-quadrate, walls thin to evenly thickened, convex on both sides of lamina, 2-stratose in one or more rows along margins.

leaves appressed to weakly spreading when dry, spreading to spreading-recurved and keeled when moist, monomorphic, ovate-triangular to lanceolate, adaxially grooved along costa, 0.6–2(–2.5) mm, base scarcely differentiated in shape to ovate, margins nearly plane to recurved at mid leaf, entire, apex acute, not fragile;

costa short-excurrent in an often papillose mucro, tapering and considerably wider at the base, pad of cells absent, adaxial costal cells elongate, 2–4 cells wide at mid leaf, guide cells in 1 layer;

basal laminal cells little differentiated, walls usually thickened, quadrate or very short-rectangular;

distal laminal cells 13–15 µm wide, 1:1, papillae absent or simple, 1–3 centered over lumens, lumens usually rounded and often angular, walls thin to irregularly thickened, convex on both sides, 1-stratose.

0.7–1 cm.

0.6–1.2 cm.

1–1.9 mm;

peristome teeth 32, linear, weakly twisted, to 600 µm, occasionally rudimentary.

0.8–1.5 mm;

peristome teeth 16, linear, cleft to near base, twisted counterclockwise once or occasionally twice, 800–1500 µm.

11–15 µm.

7–9 µm.

asexual reproduction by multicellular tubers on proximal rhizoids.

asexual reproduction specialized structures absent.

laminal KOH reaction variously negative or yellow- or orange- or red-brown.

laminal KOH reaction red-or yellow-brown, occasionally orange-brown.