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Gypsoplaca macrophylla (Largeleaf Gypsoplaca Lichen)

Gypsoplaca macrophylla, commonly known as Largeleaf Gypsoplaca Lichen or Gypsoplaca Lichen, is a fascinating species belonging to the Gypsoplacaceae family. This lichen is known for its unique adaptations to harsh environments.

Taxonomy and Nomenclature

• Scientific Name: Gypsoplaca macrophylla (Zahlbr.) Timdal
• Common Names: Largeleaf Gypsoplaca Lichen, Gypsoplaca Lichen, Gypsum Earthscale Lichen, Changing Earthscale Lichen
• Family: Gypsoplacaceae
• Taxonomic Status: Fungi, Ascomycota, Ascomycetes, Lecanorales, Gypsoplaceae, Gypsoplaca

Distribution and Habitat

• This lichen is often found in arid habitats, particularly on soils rich in calcium sulfate.
• In North America, it occurs in two separate areas, including from Utah.
• It has also been observed in British Columbia (Chilcotin Grasslands, Dog Creek area), Oregon, and Alaska.
• Additionally, it can be found in semidesert regions of the Alps, where it experiences cold winter temperatures.
• Observed in Inglefield Land.

Morphological Characteristics

• Gypsoplaca macrophylla is a squamulose (scale-like) and crustose lichen.

Ecological Role

• It is a component of biological soil crusts, which are vulnerable to human-related activities like grazing, wildfire, air pollution, and recreation vehicles.
• This lichen plays a role in gypsiferous biocrusts.

Relationships with Other Organisms

• Gypsoplaca is closely related to the genera *Protoparmelia*, and together they form a sister-group to the *Parmeliaceae* family, the largest family of lichen-forming fungi.

Further Information

• Lichen Flora of the Greater Sonoran Desert Region
• Botanical Museum, Copenhagen
• Lichen herbarium, Oslo (O)
• Boise State University Lichen Herbarium
• Discover Life
• Mushroom Observer