Brachymenium systylium (Müll.Hal.) A.Jaeger
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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.
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Family
Bryaceae
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Scientific Name
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Description
Species Description - Plants small to medium-sized, ± lustrous, matted with radicles below. Stems short, usually branched by subfloral innovations. Leaves closely spaced, ± twisted and appressed when dry, erect-spreading when moist, concave, oblong, with an abrupt, capillary tip or ± acuminate, not or indistinctly bordered by narrower cells in 1-2 rows; costa moderate in thickness, ending below the apex in lower leaves, very longexcurrent, often with a toothed hyaline tip in upper leaves; cells rhomboid-hexagonal except in the alar regions where they are subquadrate. Leaves of innovations smaller, less acuminate, narrowed at base. Dioicous. Perichaetial leaves more triangular, with a more slender costa ending below the apex. Setae slender, usually erect, up to 2 cm long, twisted to the left above; capsules erect, usually 3-4 mm long, nearly claviform to oblong-claviform with a relatively thick, short neck; operculum small, hemispheric; endostome yellowish, with a low basal membrane and rudimentary segments and cilia. Spores 22-25 µm, roughened.
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Discussion
Fig. 375e-i
B. systylium (C. Müll.) Jaeg., Ber. Thatigk. St. Gallischen Naturwiss. Ges. 1873-74: 117.1875.
Bryum systylium C. Müll., Syn. Muse. Frond. 1: 320. 1848.
B. imbricatifoliumC. Müll., Syn. Muse Frond. 2: 578. 1851.
B. capillifolium C. Müll., Syn. Muse Frond. 2: 578. 1851.
Brachymenium capillare Schimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16: 194. 1872, nom. illeg. incl. sp. prior.
B. imbricatum Schimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16: 194. 1872, nom. illeg. incl. sp. prior.
Bryum subcapillifolium C. Müll., Linnaea 38: 624. 1874.
Brachymenium subcapillifolium (C. Müll.) Jaeg., Ber. Thatigk. St.
Gallischen Naturwiss. Ges. 1873-74: 117. 1875.
B. brachypelma C. Mull, ex Ren. & Card., Bull. Soc. Roy. Bot. Belgique 31(1): 162.1893.
B. chlorocarpum Card., Rev. Bryol. 36: 111. 1909.
B. lozanoi Card., Rev. Bryol. 38: 5. 1911.
B. muenchii Broth, ex Card., Rev. Bryol. 38: 5. 1911.
B. condensatum Williams, Bryologist 26: 2. 1923.
B. imbricatifolium (C. Müll.) Steere, Bryologist 51: 98. 1948.
This species has a wide range of variation: the plants are medium-sized to small, or rarely minute, with leaves ovate, oblong, or rarely oblong-lanceolate, capillary-pointed or only short-acuminate (in the latter case, with costa ending below the apex and without a hyaline tip) and capsules oblong to clavate.
The type of Bryum condensatum has a slightly differentiated border in the hyaline part of the leaf apex indicative of a gradation toward Brachymenium niveum. Several other synonyms can be added to the list from southern Asia and Africa.
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Distribution
On the bark oftrees, rarely on rocks, in open or semi-shaded places; Baja California, Chiapas, Chihuahua, Distrito Federal, Durango, Guerrero, Jalisco, Mexico, Michoacan, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla, Queretaro, San Luis Potosi, Tamaulipas, Veracruz.—Mexico; Guatemala, Honduras, and Costa Rica; Ecuador, Bolivia, and Brazil; Arizona, New Mexico, and Texas; Rorida; southern Asia and southern Africa.
Mexico North America| Guatemala Central America| Honduras Central America| Costa Rica South America| Ecuador South America| Bolivia South America| Brazil South America| United States of America North America| Afghanistan Asia| Bangladesh Asia| Bhutan Asia| India Asia| Nepal Asia| Pakistan Asia| Sri Lanka Angola Africa| Botswana Africa| Lesotho Africa| Malawi Africa| Mozambique Africa| Namibia Africa| South Africa Africa| Swaziland Africa| Zambia Africa| Zimbabwe Africa|