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.

central strand and sclerodermis usually present, hyalodermis rare.

usually broadly lanceolate to narrowly elliptical, apex blunt to acute, margins recurved basally;

distal laminal cells if 2-stratose stacked directly over one another, walls smooth or papillose, KOH yellow or red;

costa with or without a differentiated abaxial epidermis;

gemmae occasionally present, usually clavate.

0.7–1 cm.

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.

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

usually present.