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Hylocomiastrum umbratum: Shaded Wood-moss

Hylocomiastrum umbratum, commonly known as Shaded Wood-moss or Hylocomiastrum Moss, is a species of moss belonging to the family Hylocomiaceae. This moss is found in various locations and exhibits interesting ecological relationships.

Taxonomy and Nomenclature

• Scientific Name: Hylocomiastrum umbratum (Hedw.) Fleisch.
• Synonym: Hylocomium umbratum (Hedw.) Schimp. in B.S.G.
• Family: Hylocomiaceae
• Rank: Species

Distribution and Habitat

• Hylocomiastrum umbratum is found in the USA and Canada, with distributional maps available.
• Observed in the Outer Hebrides in Scotland.
• It can also be found in hilly districts and was identified at a potential hydro site, on a bank near the base of another feature.
• Fossils have revealed its presence even at low-elevation forests during periods when alpine tundra persisted.

Morphological Characteristics

• The shoots of Hylocomiastrum umbratum are irregularly branched and pale green.
• Shoots typically range from 7 to 20 cm in length.

Ecological Role

• Hylocomiastrum umbratum is a component of native wet woods, contributing to the diverse moss layer.

Hylocomiastrum pyrenaicum: Oake's Wood-moss

Hylocomiastrum pyrenaicum, commonly known as Oake's Wood-moss or Hylocomiastrum Moss, is another species in the Hylocomiastrum genus.

Taxonomy and Nomenclature

• Scientific Name: Hylocomiastrum pyrenaicum (Spruce) Fleisch. in Broth.
• Synonym: Hylocomium pyrenaicum (Spruce) Lindb.
• Family: Hylocomiaceae

Distribution and Habitat

• Observed in Britain and Ireland.
• Observed in moss flora of Bering Island.
• Updating the rare moss list for New York State.
• It grows on more base rich soils.

Further Information

• Integrated Taxonomic Information System (ITIS) provides information on Hylocomiastrum Fleisch. in Broth.
• Discover Life offers resources about the biology, natural history, ecology, identification, and distribution of Hylocomiastrum.