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bryum moss

Scientific Name: Bryum flaccidum

Family: Bryaceae

Category: Moss

Growth: Nonvascular

Duration:

Other Names:

       

Bryum: A Diverse Genus of Mosses

Bryum is a genus of mosses belonging to the family Bryaceae. This is a large genus, potentially encompassing over a thousand described species, although taxonomic revisions have led to some species being reclassified into segregate genera.

Considerations for Pets

  • Mosses such as Bryum grow in tufts or patches.

Taxonomy and Nomenclature

  • Scientific Name: Bryum Hedw.
  • Family: Bryaceae
  • Common Name(s): Bryum Moss
  • Synonyms: Various species within the genus have their own synonyms. For example, Bryum argenteum Hedw. is also known as silvergreen bryum moss.

Distribution and Habitat

  • Bryum dixonii is endemic to Scotland and occupies montane habitats.
  • Bryum argenteum, the silvergreen bryum moss, is cosmopolitan.
  • Species like Bryum capillare have been observed in locations such as Delaware, Ohio.
  • Bryum sandbergii demonstrates wide temperature tolerance and can be found in specific environments.
  • Some species have also been found in Antarctic regions.
  • Bryum genus of mosses found on a beach along Lake Winnipeg.

Morphological Characteristics

  • Bryum argenteum forms pale green or almost white, compact tufts or patches, appearing shiny and silvery-grey.
  • Many Bryum species grow in tufts or patches, with stems typically ranging from 1 to 3 cm tall.
  • Dry plants may exhibit corkscrew-like shoots, with leaves spirally twisted around the stem.
  • Bryum flaccidum leaves arranged in a rosulate.
  • Bryum caespiticium forms crowded clumps of leaves at the upper ends of the stems.

Ecological Role

  • Bryum argenteum is an important component of Biological Soil Crusts (BSCs) in the Gurbantunggut desert, indicating a role in arid ecosystems.
  • Silvery-thread moss (Bryum argenteum) can be a target for biological control in turfgrass and nursery crops, suggesting it can be considered a weed in some contexts.

Genetic Information

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

Interactions with Other Organisms

  • Bryum argenteum in Antarctica depends on epiphytic bacteria for freezing protection.
  • Waitea circinata is a fungal pathogen that can affect Bryum mosses in amenity turfgrasses.

Quirky Facts

  • Bryum caespiticium is also known as sidewalk moss, highlighting its ability to thrive in urban environments.

Further Information

  • Jepson eFlora for CA Vascular Plants: Provides information on Bryum species found in California.
  • Encyclopedia of Life: A resource for information on Bryum argenteum.
  • Discover Life: Offers details on the biology, natural history, ecology, identification, and distribution of Bryum argenteum.
  • AusMoss: Offers a list of views of species for Bryum.