Sematophyllum swartzii (Schwägr.) W.H.Welch & H.A.Crum

  • 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

    Sematophyllaceae

  • Scientific Name

    Sematophyllum swartzii (Schwägr.) W.H.Welch & H.A.Crum

  • Description

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    Species Description - Plants small to medium-sized, yellow- to golden-green. Stems irregularly to subpinnately branched; branches short, ascending. Leaves falcate-secund, weakly concave, 1-2 mm long, lanceolate or ovate-lanceolate, acuminate; margins plane, entire to sermlate above; upper cells linear, 10-20:1, thick-walled and porose; alar cells oblong-inflated, yellowish. Setae 5-25 mm long; capsules horizontal, asymmetric, ovoid; endostome segments narrowly perforate and cilia single. Spores 12-16 µm, papillose.

  • Discussion

    Fig. 740

    S. swartzii (Schwaegr.) Welch & Crum, Bryologist 62: 176. 1959.

    Hookeria swartzii Schwaegr., Sp. Muse Suppl. 3: pl. 276a. 1830.

    Hypnum insularum Sull., Proc. Amer. Acad. 5: 287. 1861.

    H. lindigii Hampe, Linnaea 36: 530. 1862.

    Sematophyllum lindigii (Hampe) Mitt., J. Linn. Soc, Bot. 12: 487. 1869.

    S. obliquerostratumMitt., J. Linn. Soc, Bot. 12: 490. 1869.

    Rhaphidorrhynchium obliquerostratum (Mitt.) Broth, in E. & P., Nat. Pfl.ed. 2, 11: 428. 1925.

    Sematophyllum insularum (Sull.) Bartr., Fieldiana, Bot. 25: 387. 1949.

    The slenderly acuminate, falcate-secund leaves are the special features of this species. The serration of leaf tips is variable. Plants of Mexico generally have subentire leaves, but in the Caribbean area they generally have sermlate leaf tips. Intermediate conditions in both regions reduce the taxonomic value of such serrations.

  • Distribution

    Common, on logs and trunks and branches oftrees, also on rock; Chiapas, Guerrero, Hidalgo, Jalisco, Michoacan, Morelos, Oaxaca, Puebla, Sinaloa, Tamaulipas, Veracruz.—Mexico to northern South America; West Indies.

    West Indies| Central America| Mexico North America| Brazil South America| Colombia South America| Ecuador South America| French Guiana South America| Guyana South America| Peru South America| Suriname South America|