Leskea mexicana Bescherelle
Plants dark green, branches often curved, subjulaceous when dry, brood branches absent. Leaves appressed when dry, wide-spreading when moist, ca. 1 mm, broadly ovate-lanceolate, gradually narrowed to an acute to short-acuminate, apex concolorous, margins entire, costa broad, ending just below apex; median leaf cells 3--7 µm long, 1--2:1, oval, thick-walled, indistinctly 1-papillose, basal cells in several rows, subquadrate, wider than long, apical cells elongate, smooth. Seta ca. 8 mm. Capsule 1.5--2 mm. Spores 20--24 µm, smooth.
Capsules mature May--Dec. Bark of trees, shrubs, and on rotten wood; 1700--3000 m; N. Mex., Tex.; Mexico (Chihuahua, Coahuila, Tamaulipas); Central America (Guatemala).
Lindbergia mexicana is included in the genus because of its reduced peristome and leaves widely spreading when moist. It differs from the genus in a strict sense in having leaves with less distinctly papillose cells (H. A. Crum and W. R. Buck 1994). Lindbergia mexicana is distinguished from L. brachyptera by branches that are subjulaceous when dry, leaves that are acute to short acuminate, a broad costa extending nearly to apex, and indistinctly 1-papillose leaf cells.