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, strongly recurved and keeled when moist, monomorphic, ovate-triangular, adaxially grooved along costa, 2–2.5 mm, base scarcely differentiated in shape to ovate, margins nearly plane to recurved at mid leaf, entire, apex broadly acute;

costa percurrent to short-excurrent, not fragile, weakly tapering, widened pad of cells absent, adaxial costal cells elongate, 2–3 cells wide at mid leaf, guide cells in 1 layer;

basal laminal cells differentiated medially, rectangular, walls thickened and often porose;

distal laminal cells 13–15 µm wide, 1:1, papillae usually present, simple, often large, 1–3 centered over lumens, lumens angular, walls irregularly thickened and often trigonous but trigones smaller than lumens, convex on both sides, 1-stratose.

0.7–1 cm.

sterile in range of flora.

1–1.9 mm;

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

11–15 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 dark red.

unknown.