Disceliaceae Schimp.
  • Coroll. Bryol. Eur. 59. 1856.


Cite taxon page as 'WFO (2021): Disceliaceae Schimp. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-7000000199. Accessed on: 14 Apr 2021'

General Information

Plants annual, minute, arising from a perennial persistent protonema. Stems erect, to 0.2 mm, completely enveloped in leaves. Leaves with costa weak or absent, brownish or with little chlorophyll, exterior leaves 0.2-0.4 mm, interior to 1 mm, acuminate, ovate to oblong-lanceolate, margins entire to crenulate by bulging cells; laminal cells elongate-hexagonal to rectangular, thin-walled, 85-100 × 12-16 µm, smooth. Specialized asexual reproduction by 2-celled starch-filled rhizoidal gemmae. Sexual condition functionally dioicous; perigonium of 3-6 leaves surrounding a few short antheridia and yellow, club-shaped paraphyses; perichaetium with few brownish, weakly chlorophyllose leaves, these representing the plant. Seta erect, twisted to right when dry, 4-30 mm or more. Capsule wide-mouthed, 0.4-0.7 mm, pale to dark brown when mature, stomata absent; annulus in 1-2 cell rows, deciduous; peristome of 16 reddish brown to orange-yellow lanceolate exostomial teeth, to 0.3 mm, with vertical striations on exterior face, often with longitudinal perforations, endostome delicate, as a sometimes discontinuous membrane adhering to exostomial teeth; operculum conic. Calyptra smooth, sometimes persistent on seta proximal to capsule. Spores 20-30 µm.

  • Provided by: [A].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Literature

    SELECTED REFERENCES

    Duckett, J. G. and S. Pressl. 2003. Studies of protonemal morphogenesis in mosses. IX. Discelium nudum: Exquisite pioneer of unstable clay banks. J. Bryol. 25: 241-245. Shaw, A. J. and B. H. Allen. 1985. Anatomy and morphology of the peristome in Discelium nudum (Musci: Disceliaceae). Bryologist 88: 263-267.

  • Provided by: [A].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Included Genus

     Information From

    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • A Flora of North America Association
    Disceliaceae
    World Flora Online Data. 2017.
    • B CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).