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ephemerum moss

Scientific Name: Ephemerum crassinervium var. crassinervium

Family: Ephemeraceae

Category: Moss

Growth: Nonvascular

Duration:

Other Names:

       

Ephemerum Species: Earth-mosses

The genus Ephemerum, commonly known as earth-mosses, comprises a group of minute mosses found in various regions worldwide.

Considerations for Pets

  • Some Ephemerum species, such as Ephemerum crassinervum, have serrated leaves with teeth.
  • Ephemerum are tiny plants.

Scientific Name and Synonyms

  • Accepted Scientific Name: Ephemerum Hampe, 1837
  • Synonyms/Variations:
    • Ephemerum serratum (Hedw.) Hampe
    • Ephemerum serratum var. minutissimum (Lindb.) Grout
    • Ephemerum spinulosum Bruch & Schimp ex Schimp
  • Other Species Mentioned:
    • Ephemerum minutissimum
    • Ephemerum recurvifolium (Dicks) Boulay
    • Ephemerum cohaerens (Hedw.) Hampe
    • Ephemerum crassinervum Hampe
    • Ephemerum crassinervium texanum
    • Ephemerum rutheanum
    • Ephemerum virginianum
    • Ephemerum capensi

Common Names

  • Serrated Earth-moss
  • Strap-leaved Earth-moss
  • Clustered Earth-moss
  • Ephemerum moss
  • Texas ephemerum moss
  • Virginian ephemerum moss

Taxonomy and Nomenclature

  • Kingdom: Plant (implied)
  • Family: Ephemeraceae
  • Rank: Genus (Ephemerum)

Distribution and Habitat

  • Found throughout low elevations in California.
  • Known in Europe (Ephemerum spinulosum) only from inundation zones.
  • Found in the Dutch Rhine floodplain (Ephemerum cohaerens and E. rutheanum).
  • Occurs in Northern England, the English Midlands, East Anglia, Wales, southeast England, and central southern England.
  • Regional distribution and altitudinal distribution are given for Ephemerum recurvifolium in Czechoslovakia.
  • Ephemerum cohaerens has been found at Battelle Darby Metro Park, Franklin County, Ohio.
  • A subtropical moss which was not known in Russia before (Ephemerum spinulosum).

Morphological Characteristics and Growth Habits

  • Minute plant, with shoots up to 2 mm tall.
  • Ephemerum crassinervum has leaves from 0.8 to 2.5 mm long that are very serrate.
  • Leaves of some species are sharply-toothed.
  • Has persistent protonema.

Physiological Information

  • Ephemerum has few round-pored stomata compared to elaborated Oedipodium.

Interactions with Other Organisms

  • Ephemerum cohaerens supports Warne's Thread-moss (Bryum warneum).

Resources and Further Information

  • USDA
  • British Database of World Flora and Fauna
  • Encyclopedia of Life
  • Interim Register of Marine and Nonmarine Genera