Chryso-hypnum elegantulum (Hook.) Hampe

  • 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

    Hypnaceae

  • Scientific Name

    Chryso-hypnum elegantulum (Hook.) Hampe

  • Description

    Species Description - Plants yellow or brownish-yellow. Stems up to 3 cm long; branches subcomplanate to julaceous, up to 0.5 cm long, horizontally spreading. Stem leaves patent, 0.7-1.1 x 0.5-0.8 mm, widely ovate to triangular-ovate, abmptly narrowed to a short, curved acumen, cordate at base; upper median cells 20-50 x 2-3 µm (rarely with lower angles only indistinctly projecting); alar cells weakly differentiated, short-rectangular. Branch leaves 0.6-0.9 x 0.3-0.5 mm. Perichaetial leaves subentire. Setae 2-3 cm long; capsules oblong-cylindric, inclined to horizontal, shghtiy curved, 2-2.6 mm long, 0.6-0.8 mm broad; exothecial cells rectangular; operculum conic-rostellate; cilia of endostome 2-3. Spores ± 10 µm. Calyptrae sparsely hairy.

  • Discussion

    Fig. 782

    C. elegantulum (Hook.) Hampe, Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn m, 2: 286. 1870.

    Hypnum elegantulum Hook., Musci Exot. 1: pl. 84. 1818.

    Microthamnium elegantulum(Hook.)Mitt.,J. Linn. Soc, Bot. 12: 504. 1869.

    Stereohypnumelegantulum(Hook.) Fleisch., Hedwigia 47: 282. 1908.

    Mittenothamnium elegantulum (Hook.) Card., Rev Bryol 37: 55. 1910.

    The species is distinguished from C. diminutivum by less-flattened branches, wider, more cordate stem leaves with curved acumina, only slightly differentiated alar cells, and longer-cylindric capsules.

  • Distribution

    On logs; Veracruz.—Mexico to South America.

    Mexico North America| Central America| South America|