Calymperes erosum Müll.Hal.

  • 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

    Calymperaceae

  • Scientific Name

    Calymperes erosum Müll.Hal.

  • Description

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    Species Description - Plants light- to yellow-green or brownish, sometimes tinged below with pink or purple, 5-12 mm tall, single or in small clumps. Leaves tightly involute and falcate when dry, 3-4.5 mm long, the base conspicuous; upper lamina ligulate to ligulate-lanceolate or in propaguliferous leaves greatly reduced; lower lamina obovate, 1/3-1/2 the leaf length; tips of non-propaguliferous leaves often abruptly pinched off; cancellinae acute or rounded above, the apical cells mammillose on the ventral surface; costa mostly smooth dorsally except near the apex; cells of upper lamina finely papillose dorsally, irregularly rounded to square or rectangular; teniolae usually prominent and well developed from the leaf base nearly to the apex, 2-3 cells wide and 2-8 cells in from the margin at the shoulders; margins serrulate all around except in the basal part, usually serrate-dentate below the apex. Filiform-clavate propagula borne all around the costa at its apex. Setae 4.5 mm long; capsules cylindric, 2.5 mm long; operculum short-conic, the beak 0.8 mm long. Spores finely papillose, 20-26 µm. Calyptrae strongly plicate, 4.5 mm long.

  • Discussion

    Fig. 157

    Calymperes erosum C. Mull., Linnaea 21: 182. 1848.

    C. emersumC. Mull., Bull. Herb. Boissier 5: 189. 1897.

    This species is likely to be confused in Mexico only with C. afzelii, from which it m a y be distinguished by larger, more irregular leaf cells, teniolae extending nearly to the leaf apex, cancellinae with mammillose apical cells, and propagula borne all around the tips of costae.

  • Distribution

    Mostly on bark and stumps or logs, but also on rock and soil in mesic forests up to 650 m in elevation; Quintana Roo, Veracruz.—Mexico to northern South America and the Galapagos; West Indies; Rorida; pantropical.