Leptostomum menziesii R. Brown 1811

Leptostomum menziesii

Leptostomum menziesii R. Brown., Trans. Linn. Soc. London 10:321, 1811. [Original material: Staaten Isl., Cape Horn, coll. Menzies.]

Stems to 2 cm high with erect, laxly appressed, slightly contorted leaves when dry. Leaf laminae oblong, to 3 mm long, 1.2 mm wide, abrupt or somewhat tapering at base of arista; margins erect or broadly and laxly reflexed, obscurely serrate near tip; costa stout, ca. 150 μm wide at base, more slender apically to 20 μm wide, long-excurrent in slightly sinuous or bent arista; most lamina cells rather rounded, with somewhat thickened walls, ca. 12–15 μm in diameter, some basal cells more elongate, to 30 μm; scattered, narrow, elongate cells along upper margin to 40 μm long. Setae to 2 cm long, reddish brown. Capsule horizontal to pendant, urn to 7 mm long, 1 mm wide, cylindrical, with tapering base 1.5 mm long; outer peristome lacking, inner peristome a partly dissected membrane.

MAS AKUERA: Cordón Barrii, Sk. 196; trail to Los Innocentes, ca. 3000 ft, H. & E. 248B; below summit of Los Innocentes, ca. 4000 ft, H. & E. 485, 529.

MAS A TIERRA: Below east face of El Yunque, ca. 1600 ft, H. & E. 321.

The species is known only from Chile and the Fuegian part of Argentina.

DIPLOSTICHACEAE