Bryum limbatum Müll.Hal.

  • 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 limbatum Müll.Hal.

  • Description

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    Species Description - Plants small, scarcely lustrous, pale-green, growing ± obliquely and ± flattened, usually in dense tufts. Stems simple or branched by subfloral innovations. Leaves somewhat distant nearly throughout, ± wrinkled when dry, spreading when moist, ovate or oblong, rounded, obtuse or acute and shortly or scarcely acuminate, narrow and decurrent at base, distinctly bordered by 3-5 rows of longer, slightly thicker-walled, slightly narrower cells; margins reflexed below, nearly entire or finely serrulate above; costa not strong, subpercurrent to short-excurrent; cells small, thin-walled, regularly hexagonal in the middle of the lamina, rectangular below. Leaves of innovations smaller, with costa weaker and often ending far below the apex. Dioicous. Setae slender, ca. 1 cm long; capsules ± asymmetric, nearly erect to horizontal, with a short to relatively long, abruptly narrowed, slender neck gradually tapered to the seta; operculum hemispheric to short-conic, apiculate or short-beaked; peristome teeth joined at base; segments narrowly perforate or slitted and cilia well developed, nodulose or shortly appendiculate. Spores 13-15 µm, slightly roughened.

  • Discussion

    Fig. 347

    B. limbatum C. Miill., Syn. Muse. Frond. 2: 573. 1851.

    Cladodium socorrense Hampe, Ann. Sci. Nat. Bot. V, 4: 388. 1865.

    Bryum socorrense (Hampe) Mitt., J. Linn. Soc, Bot. 12: 295. 1869.

    B. maynense Spruce ex Mitt., J. Linn. Soc., Bot. 12: 321. 1869.

    Webera mnioides Schimp. ex Besch., Ann. Sci. Nat. Bot. VI, 3: 204. 1876.

    Bryum oediloma C. Miill. ex Broth., Bih. Kongl. Svenska Vetensk. -Akad.F6rh.21,3(3):29. 1895.

    B. leptoloma Broth, ex Par., Index Bryol. Suppl. 66. 1900, nom. nud., non C.Mull., 1879.

    B. mnioides (Schimp.) Broth, in E. & P., Nat. Pfl. 1(3): 574.1903, non Gmel. ex With., 1801, nee Wils., 1844.

    B. leonardii Wlliams, J. Wash. Acad. Sci. 20: 174.1930.

    B. riograndense Bartr., J. Wash. Acad. Sci. 42: 180. 1952.

    This species m a y be related to Epipterygium, judging from the rather flat and distant arrangement of leaves, as well as the border of thicker-walled, somewhat narrower cells in 3-5 rows and more or less asymmetric capsules with an abruptly narrowed, slender neck gradually tapering to the seta. But there is almost no differentiation of lateral and ventral leaves, and the cilia of the endostome are well developed and often appendiculate, as in most species of Bryum.

  • Distribution

    On wet rocks, mostly along streams; Chiapas, Oaxaca, Veracruz—Mexico; Costa Rica; Venezuela, Colombia, Ecuador, Peru, Bolivia, and Brazil; Cuba, Haiti, and the Lesser Antilles.

    West Indies| Haiti South America| Cuba South America| Brazil South America| Bolivia South America| Peru South America| Ecuador South America| Colombia South America| Venezuela South America| Costa Rica South America| Mexico North America|