Entodon serrulatus Mitt.

  • 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

    Entodon serrulatus Mitt.

  • Description

    Species Description - Plants medium-sized, yellow-green to golden, glossy, in ± flat, loose mats. Stems prostrate, irregularly branched, the branches flattened, sometimes indistinctly so. Leaves erect-spreading, broadly lanceolate, acuminate (commonly abruptly so), 1.5-2.1 mm long; margins plane, sermlate in the upper half, rarely entire; costa short and double; cells linear, not appreciably shorter at the apex; alar cells numerous, quadrate to short-rectangular, ± abmptly differentiated from those above, reaching the costa in almost all leaves. Autoicous. Setae yellowish, 7-14 mm long; capsules ca. 3 mm long; annulus none; operculum conic- to bluntly rostrate; exostome teeth lanceolate, orange, striolate below, papillose above; endostome coarsely and densely papillose. Spores papillose, 20-25 µm.

  • Discussion

    Fig. 712

    E. serrulatus Mitt., J. Linn. Soc, Bot. 12: 632. 1869.

    Cylindrothecium stenocarpumSchimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16: 238. 1872.

    Entodon stenocarpus (Schimp. ex Besch.) Jaeg., Ber. Thatigk. St. Gallischen Naturwiss. Ges. 1876-77: 290. 1878.

    Cylindrothecium serrulatum (Mitt.) Par., Index Bryol. 303. 1894.

    The seta is a bit longer and often m u c h longer than in E. abbreviatus. Similar to E. abbreviatus too is a tendency to have abmptly tapered leaf tips. Distinctive characters are provided by the alar cells differentiated all across the insertion and endostome coarsely and densely papillose. Bartram, in the Mosses of Guatemala, put E. serrulatus in synonymy with E. jamesonii. It is surely close to that species but has non-dimorphous leaves with quadrate alar cells nearly always reaching the costa and a very different endostomial ornamentation.

  • Distribution

    Mostly on the bases of trees; Chiapas, Hidalgo, Mexico, Michoacan, Morelos Oaxaca, Puebla, Veracruz.—Mexico; Guatemala and Costa Rica; Hispaniola.

    Haiti South America| Dominican Republic South America| Costa Rica South America| Guatemala Central America| Mexico North America|