Dicranella hilariana (Mont.) Mitt.

  • 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

    Dicranaceae

  • Scientific Name

    Dicranella hilariana (Mont.) Mitt.

  • Description

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    Species Description - Plants in yellow-brown to dull-green tufts u p to about 10 mm high. Leaves erect-flexuose to subsecund when dry, erect-spreading when moist, 1-2 mm long, oblong- to narrowly lanceolate, gradually tapered to a narrow, blunt or rounded, usually crenulate or serrulate tip (especially on leaves of innovations); margins ± recurved, often strongly so; costa stout, subpercurrent, sometimes ± rough at back above; cells variable, quadrate to short-rectangular and rather thin-walled to irregularly rectangular or linear and thick-walled, 11-55 x 5-7 µm. Setae 5-15 mm long, flexuose to rigid and rather stout, usually yellow, becoming brown to reddish with age; capsules erect and symmetric, 0.7-1 mm long, ovoid to subcylindric, smooth, usually ± contracted below the mouth when dry and empty; annulus large; operculum 0.7-1 mm long; peristome teeth 200-290 µm high, divided more than 1/2 way down from the apex, pitted-striolate below. Spores 15-20 µm, finely papillose.

  • Discussion

    Fig. 82a-c

    D. hilariana (Mont.) Mitt., J. Linn. Soc, Bot. 12: 31. 1869.

    Dicranum hilarianum Mont., Ann. Sci. Nat. Bot. II, 12: 52. 1839.

    D. debile Wils. exDrumm., Musci Amer. (S. States), no. 51. 1841.

    D. tenuirostreKunzeexSchv/aegr., Sp. Muse Suppl. 4: pl. 108a. 1842.

    Aongstroemia UebmannianaC. Mull., Syn. Muse Frond. 2:605.1851.

    ?A. compacta C. Mull., Syn. Muse Frond. 2: 606. 1851.

    Dicranella subinclinata Lor., Moosstud. 160. 1864.

    ?D. compacta (C. Mull.) Mitt., J. Linn. Soc, Bot. 12: 37. 1869.

    D. liebmanniana (C. Mull.) Mitt., J. Linn. Soc, Bot. 12: 32. 1869.Dicranum caespitans Schimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16: 164. 1872.

    Campylochaetium mexicanum Besch., Mem. Soc. Nat. Sci. Cherbourg 16: 168. 1872.

    Aongstroemia trematodontifoliaC. Mull., Linnaea 38: 630. 1874.

    A. mexicana (Besch.) C. Mull., Linnaea 38. 630. 1874.

    Dicranella herminieri Besch., Ann. Sci. Nat. Bot. VI, 3: 180. 1876.

    D. stenocarpa Besch., Ann. Sci. Nat. Bot. VI, 3: 182. 1876.D. mexicana (Besch.) Jaeg., Ber. Thatigk. St. Gallischen Naturwiss Ges. 1877-8:376. 1879.

    Trichostomum pyriforme Lesq. & James, Man. Mosses N. Amer. 109. 1884.

    Dicranella laxiretis Ren. & Card., Rev. Bryol. 20: 30.1893.

    D. tonduzii Ren. & Card., Bull. Soc. Bot. Belgique 31(1): 144.1893.

    D. leptorhyncha Ren. & Card., Bull. Soc. BoL Belgique 31(1): 143.1893.

    D. leptotrichoides Ren. & Card., Bot. Gaz. 19: 237. 1894.

    Aongstroemia hydrophila C. Mull., Hedwigia 37: 230. 1898.

    A. pseudo-debilis C. Mull., Hedwigia 37: 229. 1898.

    ?A. wrightii C. Mull., Hedwigia 37: 229. 1898.

    Microdus hydrophilus (C. Mull.) Par., Index Bryol. Suppl. 245.1900.

    M. cubensis Par., Index Bryol. Suppl. 244. 1900, nom. nud.

    Dicranella martinicae Broth, in Urban, Symb. Antill. 3: 421. 1903.

    D. substenocarpa Ren. & Card., Bull. Soc. Bot. Belgique 41(1): 11. 1905.

    Microdus leptotrichoides (Ren. & Card.) Par., Index Bryol. ed. 2, 3: 237. 1905.

    M. debilis (Wils. ex Drumm.) Besch. ex Par., Index Bryol. ed. 2, 3: 236. 1905.

    M. laxiretis (Ren. & Card.) Par., Index Bryol. ed. 2, 3: 237. 1905.

    ?M. wrightii (C. Mull.) Par., Index Bryol. ed. 2, 3: 240. 1905.

    plants are generally recognized by yellowish setae (darkening with age), erect and symmetric capsules, and leaves slender but blunt and generally toothed at the apex.

  • Distribution

    On roadbanks or banks of ditches at 100-1500 m alt.; Guerrero, Hidalgo, Oaxaca, Puebla, Veracruz.—Mexico; throughout tropical America; southeastern United States.

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