Barbula ehrenbergii (Lorentz) M.Fleisch.

  • Authority

    Sharp, Aaron J., et al. 1994. The Moss Flora of Mexico. Part One: Sphagnales to Bryales. Mem. New York Bot. Gard. 69 (1): 1-452.

  • Family

    Pottiaceae

  • Scientific Name

    Barbula ehrenbergii (Lorentz) M.Fleisch.

  • Description

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    Species Description - Plants green above, brown below. Stems little-branched, 10-35 mm high, often encrusted with limy deposits. Propagula axillary on stalks, corniculate-branched or filamentous, up to 18 µm long. Leaves when dry erect and weakly incurved, w h e n moist spreading at 45°, flat or broadly concave, 2-2.7 mm long, long-elliptic to short-hngulate, narrowly to broadly obtuse, the base scarcely differentiated, ovate, decurrent; margins recurved in the lower 1/2-3/4, entire or denticulate at the apex; costa percurrent or ending 2-3 cells below the apex, prominent at back, with ventral cells short-rectangular to elongate, the ventral stereids well developed, hydroids none; upper cells subquadrate to short-rectangular, 11—15(—16) µm wide, 1-2:1, bulging ventrally more than dorsally, with papillae none or occasionally low, simple, hollow, 4-6 per cell; basal cells extending higher at margins than at the costa, rectangular, mostly 16-27 µm wide and 3-4:1, the marginal cells occasionally papillose-projecting at the ends. Sporophytes not seen.

  • Discussion

    Fig. 217

    B. ehrenbergii (Lor.) Fleisch., Musci. Arch. Ind. Exs. IV, no. 161. 1901.

    Trichostomum ehrenbergii Lor., Abh. Konigl. Akad. Wiss. Berlin 1867:25.1868.

    Barbula ehrenbergii var. mexicana Ther., Smithsonian Misc. Collect. 85(4): 19. 1931.

    This species of relatively temperate regions is morphologically close to the more tropical B. arcuata', s o m e specimens are difficult to assign to one or the other species.

  • Distribution

    On wet calcareous rock (often tufa-forming), often in waterfalls, springs, or running water; Chiapas, Coahuila, Nuevo Leon, Queretaro, San Luis Potosi, Tamaulipas.—Mexico; Belize; southwestern United States; southern Europe, North Africa, and the Middle East; eastern Asia.

    China Asia| Japan Asia| Mongolia Asia| South Korea Asia| North Korea Asia| Taiwan Asia| Algeria Africa| Egypt Africa| Libya Africa| Morocco Africa| Tunisia Africa| Europe| United States of America North America| Belize Central America| Mexico North America|