Common Boulder Lichen vs Indian Palm Squirrel

Porpidia macrocarpa compared with Funambulus palmarum

Key Differences

• Common Boulder Lichen is Near Threatened while Indian Palm Squirrel is Least Concern.

Taxonomic Classification

Rank	Common Boulder Lichen	Indian Palm Squirrel
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (Mammals)
Order	Lecideales (Lecideales)	Rodentia (Rodents)
Family	Lecideaceae	Sciuridae (Squirrels)
Genus	Porpidia	Funambulus
Species	Porpidia macrocarpa	Funambulus palmarum

Conservation Status

Common Boulder Lichen

NT — Near Threatened

Indian Palm Squirrel

LC — Least Concern

Physical Characteristics

Attribute	Common Boulder Lichen	Indian Palm Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Boulder Lichen

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Indian Palm Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Boulder Lichen

The common boulder lichen (<em>Porpidia macrocarpa</em>) is a crustose lichen species with a wide distribution across Europe and the Americas, recorded in Colombia, Denmark, Norway, Portugal, Sweden, and the United States. This species typically inhabits siliceous rock surfaces in a variety of exposed terrestrial environments across both North and South America and Europe. The common boulder lichen is classified as Near Threatened on the IUCN Red List, suggesting that its populations face potential pressures and require monitoring. As a slow-growing crustose lichen, it often colonizes hard rock substrates including granite and quartzite, forming a close symbiotic relationship between its fungal and algal components. It plays an important role in the early stages of soil formation through the gradual weathering of rock surfaces. Biological traits of this species remain poorly documented in the scientific literature.