Erythrodontium longisetum (Hook.) Paris

  • Authority

    Sharp, Aaron J., et al. 1994. The Moss Flora of Mexico. Part Two: Orthotrichales to Polytrichales. Mem. New York Bot. Gard. 69 (2)

  • Family

    Entodontaceae

  • Scientific Name

    Erythrodontium longisetum (Hook.) Paris

  • Description

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    Species Description - Plants moderately robust, in mostly yellow-green, dense mats. Branches ascending, ± straight, julaceous. Leaves imbricate, oblong-ovate or rarely ovate, concave, abmptly rounded to the acumen, 1.1-1.5 mm long, broadly decurrent; margins plane or rarely recurved above, entire or minutely sermlate near the apex; costa short and double or commonly absent; cells linear, shorter and subflexuose in the acumen; alar cells short-rectangular (wider than long), not extending across the insertion. Seta yellow, commonly becoming darkorange with age, 1-1.5 cm long; capsules 2-4 mm long; operculum conic-rostrate; exostome teeth light-yellow, becoming hyaline with age, smooth throughout or occasionally striate or papillose below; endostome smooth, mdimentary. Spores coarsely papillose, 25-32 µm.

  • Discussion

    Fig. 715

    E. longisetum (Hook.) Par., Index Bryol. 436. 1896.

    Neckera longiseta Hook., Musci Exot. 1: pl. 43. 1818.

    N. teres C. Mull., Syn. Muse Frond. 2: 98. 1850.

    N. cylindricaulisC. Mull., Syn. Muse Frond. 2: 100. 1850.

    Entodon teres (C. Mull.) Mitt., J. Linn. Soc, Bot. 12: 524. 1869.

    Rhegmatodon hypnoides Schimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16: 232. 1872.

    Leptohymenium affine Schimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16: 246. 1872.

    L. myuroides Schimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16: 246. 1872.

    L. julaceum Schimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16: 246. 1872.

    Cylindrothecium hypnoides (Schimp. ex Besch.) Kiaer, Forh. Vidensk.-Selsk. Christiana 1882(4): 43. 1883.

    Erythrodontium teres (C. Miill.) Par., Index Bryol. 437. 1896.

    E. cylindricaule(C. Mull.) C. MUll., Bull. Herb. Boissier 5: 208. 1897.

    E. myuroides (Schimp. ex Besch.) Besch., J. Bot. (Morot) 15: 385. 1901.

    E. affine (Schimp. ex Besch.) Broth, in E. & P., Nat. Pfl. 1(3): 888. 1907.

    E. minus Card., Rev. Bryol. 37: 11. 1910.

    Entodon hypnoides (Schimp. ex Besch.) Wijk & Marg., Taxon 8: 106. 1959.

    The species is easily distinguished by oblong-ovate leaves and mostly smooth exostome teeth. The ± ascending, julaceous branches are unlike anything in Entodon. Upon exposure the seta darkens, and the exostome bleaches out. Erythrodontium affine (Entodon hypnoides) might conceivably be singled out as a variety because of a shaggy aspect and ovate leaves (like the stem leaves of E. longisetum). However, it seems to occur mainly in marginal habitats as an aberrant growth form.

  • Distribution

    On bases and branches oftrees and on rocks; Chiapas, Guerrero, Hidalgo, Jalisco, Michoacan, Nayarit, Oaxaca, Puebla, San Luis Potosi, Tamaulipas Veracruz.—Mexico to northern and central South America; Greater Antilles.

    Mexico North America| South America|