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giant shield lichen

Scientific Name: Cetrelia olivetorum

Family: Parmeliaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Giant Shield Lichen (Cetrelia monachorum)

Explore the fascinating world of the Giant Shield Lichen, a unique organism with an intriguing presence in various ecosystems. This article provides an overview of its classification, distribution, and characteristics, drawing from information provided by gardening experts and botanical resources.

Taxonomy and Nomenclature

  • Scientific Name: Cetrelia monachorum
  • Common Name: Giant Shield Lichen
  • Genus: Cetrelia
  • Family: Parmeliaceae
  • Kingdom: Plantae (Note: Lichens are not plants but rather symbiotic organisms. This reference reflects common, though inaccurate, usage.)
  • Synonyms:
    • Cetraria chicitae Culb.
    • Cetrelia chicitae (Culb.) Culb. & C. Culb.
    • Parmelia cetrarioides var. rubescens (Th. Fr.) Du Rietz
    • Cetrelia olivetorum (Nyl.) W.L.Culb. &amp C.F.Culb.
    • Cetrelia cetrarioides
    • Cetrelia alaskana
    • Cetrelia braunsiana
    • Cetrelia chicitae
  • Other Names: speckled rag lichen, sea-storm lichen, Alaskan giant shield lichen, Chicita's giant shield lichen

Distribution and Habitat

  • The Giant Shield Lichen is primarily epiphytic.

Morphological Characteristics

  • Visible from a distance as a large pale whitish to greenish gray patch.
  • Perforate apothecia with large, ellipsoid spores.
  • Bifusiform conidia.
  • Lichenous growth habit.

Interactions with Other Organisms

  • Associated with trees in Drummond Woods.

Quirky Facts

  • The article mentioned is an orb weaver, Araneus bicentenarius, referred to as a Giant Lichen Orbweaver.

Further Information

  • Catalogue of Life: 2012 Annual Checklist
  • Australian Plant Names Index