Bryum alpinum Huds. ex With.

  • 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

    Bryaceae

  • Scientific Name

    Bryum alpinum Huds. ex With.

  • Description

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    Species Description - Usually lustrous, often reddish, medium-sized plants in dense tufts. Stems usually subflorally branched. Leaves closely imbricate nearly throughout, ± wrinkled and appressed when dry, erect or erect-spreading when moist, narrowly oblong, oblong-lanceolate, or lanceolate, usually scarcely acuminate, hardly decurrent, not bordered; margins almost entire; cells rhomboidal to linear, slightly broader and rectangular below. Dioicous. Setae slender, up to 3 cm long; capsules nearly horizontal to nutant, red, oblong-pyriform, with a short, slender neck; operculum relatively small, nearly hemispheric, finely apiculate; cilia of endostome well developed, appendiculate. Spores 10-12 µm, smooth.

  • Discussion

    Fig. 352

    B. alpinum Huds. ex With., Syst. Arrang. Brit. Pl. ed. 4,3: 824. 1801.

    Bryum alpinum has s o m e resemblance to Pohlia but can be recognized b y shiny, golden-brown or reddish, oblong-lanceolate leaves which are imbricate and scarcely contorted when dry and have narrowly rhomboidal to linear cells.

  • Distribution

    On rocks in open to semi-shady sites at relatively higher altitudes; Durango and Oaxaca.—Mexico; widespread in holarctic and paleotropical areas, much less collected in Australasia and South America.

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