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 when dry, spreading and not keeled when moist, monomorphic, long-ovate to lanceolate, broadly concave adaxially across leaf, usually 0.8–1.7 mm, base weakly differentiated in shape, long-ovate, margins usually broadly recurved to revolute to mid leaf or to near apex, minutely crenulate, apex acute to narrowly acuminate, often weakly cucullate;

costa percurrent or ending 2–4 cells below the apex, little tapering, not strongly spurred, without an adaxial pad of cells, adaxial costal cells rectangular, 2 cells wide at mid leaf grading to 4 below, guide cells in 1 layer;

basal laminal cells differentiated medially, walls thick, rectangular, not perforated;

distal laminal cells in rows, 7–11(–14) µm wide, 1:1 or often longitudinally elongate, papillae apparently absent but visible in section as low, flattened to multiplex capitulate lenses, 1–3 per lumen, lumens ovate, walls evenly thickened and weakly convex on both sides of lamina, 1-stratose.

0.7–1 cm.

0.7–0.9 cm.

1–1.9 mm;

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

1.5–2.8 mm;

peristome teeth 32, linear, straight to twisted 1.5 times, 100–600 µm.

11–15 µm.

9–13 µm.

asexual reproduction by multicellular tubers on proximal rhizoids.

asexual reproduction absent.

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

laminal KOH reaction red.