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bryum moss

Scientific Name: Bryum gemmascens

Family: Bryaceae

Category: Moss

Growth: Nonvascular

Duration:

Other Names:

       

Bryum: A Diverse Genus of Mosses

Bryum is a large and widespread genus of mosses belonging to the family Bryaceae. With potentially over a thousand described species, it represents a significant portion of the moss world.

Considerations for Pets

  • The text mentions that Bryum moss grows in tufts or patches, and has stems.
  • Some Bryum mosses like B. argenteum form compact tufts or cushions.

Scientific Classification and Nomenclature

  • Genus: Bryum
  • Family: Bryaceae
  • Synonyms/Alternative Names:
    • Rhodobryum roseum (formerly Bryum roseum)

Common Names

  • Dixon's Thread-moss (Bryum dixonii)
  • Capillary Thread-moss (Bryum capillare)
  • Silvergreen bryum moss (Bryum argenteum)
  • Glossy Red Bryum Moss (Bryum miniatum)

Distribution and Habitat

  • Bryum dixonii is endemic to Scotland and occupies montane habitats.
  • Bryum capillare was found at bluff overlooking Alum Creek in Delaware Ohio.
  • Bryum argenteum has been found in the Gurbantunggut desert as an important component of the Biological Soil Crusts (BSCs).
  • Rhodobryum roseum (formerly Bryum roseum) is found throughout most of the world in woods or sheltered grassy areas.
  • One sample of the bryum genus was found on a beach along Lake Winnipeg.
  • Bryum caespiticium has been found at Greenville Falls State Naure Preserve, Miami County, Ohio.

Morphological Characteristics

  • Bryum mosses grow in tufts or patches.
  • Stems are mostly 1 to 3 cm tall.
  • Dry plants may have corkscrew-like shoots with leaves spirally twisted around the stem.
  • Bryum argenteum forms pale green or almost white, compact tufts or patches that look shiny and silvery grey.
  • Bryum caespiticium forms crowded clumps of leaves at the upper ends of the stems.
  • Bryum flaccidum moss grows with its leaves arranged in a rosulate manner.

Genetic Information

  • The RAPD (Random Amplified Polymorphic DNA) technique has been used to assess the level of genetic diversity in Bryum pseudotriquetrum.

Interactions with Other Organisms

  • Waitea circinata is an important fungal pathogen that affects Bryum argenteum establishment.
  • Bryum argenteum depends on epiphytic bacteria for freezing protection in an Antarctic environment.

Further Information

  • Jepson eFlora for CA Vascular Plants, University
  • Encyclopedia of Life
  • Discover Life
  • AusMoss