vs Hollow Shell Lichen

Acrocordia gemmata compared with Acrocordia cavata

Key Differences

• is Vulnerable while Hollow Shell Lichen is Data Deficient.

Taxonomic Classification

Rank		Hollow Shell Lichen
Kingdom same	Fungi (เห็ดรา)	Fungi (เห็ดรา)
Phylum same	Ascomycota (Sac Fungi)	Ascomycota (Sac Fungi)
Class same	Dothideomycetes (Dothideomycetes)	Dothideomycetes (Dothideomycetes)
Order same	Monoblastiales (Monoblastiales)	Monoblastiales (Monoblastiales)
Family same	Monoblastiaceae	Monoblastiaceae
Genus same	Acrocordia	Acrocordia
Species	Acrocordia gemmata	Acrocordia cavata

Evolutionary Relationship

and Hollow Shell Lichen share a common ancestor at the Genus level: Acrocordia.

Conservation Status

VU — Vulnerable

Hollow Shell Lichen

DD — Data Deficient

Physical Characteristics

Attribute		Hollow Shell Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Hollow Shell Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States.

Acrocordia gemmata is a crustose lichen in the family Monoblastiaceae, assessed as Vulnerable (VU). It grows on smooth bark of old trees in ancient woodland habitats, and its presence is considered an indicator of long ecological continuity. Habitat loss through the removal of veteran trees is the primary threat to this species.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States