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bryum moss

Scientific Name: Bryum gemmilucens

Family: Bryaceae

Category: Moss

Growth: Nonvascular

Duration:

Other Names:

       

Bryum: A Diverse Genus of Mosses

Bryum is a widespread and diverse genus of mosses belonging to the family Bryaceae. With potentially over a thousand described species, it represents a significant component of various ecosystems worldwide.

Considerations for Pets

  • Bryum mosses grow in tufts or patches.

Taxonomy and Nomenclature

  • Scientific Name: Bryum Hedw.
  • Family: Bryaceae
  • Common Names: Includes terms such as bryum moss, silvergreen bryum moss, Dixon's threadmoss, capillary thread-moss, and red thread-moss.
  • Examples of Species and Varieties:
    • Bryum dixonii Cardot ex W.E.Nicholson (Dixon's Thread-moss)
    • Bryum capillare Hedw. var. capillare
    • Bryum turbinatum (Hedw.) Turner
    • Bryum cyclophyllum (Schwgr.) Bruch &amp Schimp.
    • Bryum argenteum Hedw. (silvergreen bryum moss)
    • Bryum algovicum Sendtn. ex Mll. Hal. var. algovicum
    • Bryum apiculatum Schwgr.
    • Bryum aeneum Blytt ex Bruch &amp Schimp. in B.S.G.
    • Bryum miniatum Lesq. (red thread-moss / glossy red bryum moss)
    • Bryum muehlenbeckii
    • Bryum sandbergii
    • Bryum dichotomum / Bryum bicolor
  • Synonyms: Rhodobryum roseum (formerly Bryum roseum). Also, the text mentions that the genus has been split into segregate genera.

Distribution and Habitat

  • Bryum dixonii is endemic to Scotland, occupying montane habitats.
  • Bryum argenteum is a cosmopolitan moss. It is found in the Gurbantunggut desert as a component of Biological Soil Crusts (BSCs).
  • Bryum capillare was observed at Alum Creek in Delaware, Ohio.
  • Bryum caespiticium was observed at Greenville Falls State Nature Preserve, Miami County, Ohio.
  • Bryum genus of mosses can be found on a beach along Lake Winnipeg.
  • Rhodobryum roseum (formerly Bryum roseum) is found throughout most of the world in woods or sheltered grassy.

Morphological Characteristics

  • Bryum argenteum forms pale green or almost white, compact tufts or patches with a shiny, silvery-grey appearance.
  • Stems are typically 1 to 3 cm tall.
  • Dry plants of some species may exhibit corkscrew-like shoots, with leaves spirally twisted around the stem.
  • Bryum caespiticium forms crowded clumps of leaves at the upper ends of the stems.
  • Some Bryum species, such as Bryum flaccidum, grow with leaves arranged in a rosette.
  • Long-leaved thread moss grows in tufts and is reddish-green in color.

Ecological Role

  • Bryum argenteum is an important component of Biological Soil Crusts (BSCs) in desert environments.
  • Bryum caespiticium is referred to as sidewalk moss.

Genetic Information

  • RAPD (Random Amplified Polymorphic DNA) techniques have been used to assess genetic diversity in Bryum pseudotriquetrum.

Interactions with Other Organisms

  • Bryum argenteum may depend on epiphytic bacteria for freezing protection in Antarctic environments.
  • Waitea circinata is an important fungal pathogen of amenity turfgrasses and is especially relevant to Bryum argenteum.

Quirky Facts

  • Bryum argenteum has been used to study sex ratios in expressing and nonexpressing shoots.

Resources and Further Information

  • Jepson eFlora for CA Vascular Plants, University of California.
  • Encyclopedia of Life.
  • Discover Life.
  • AusMoss.
  • Some Common Mosses of BC.