Clustered Bracket vs Delicate Pygmy Rice Rat

Inonotus cuticularis compared with Oligoryzomys delicatus

Key Differences

• Clustered Bracket is Vulnerable while Delicate Pygmy Rice Rat is Data Deficient.

Taxonomic Classification

Rank	Clustered Bracket	Delicate Pygmy Rice Rat
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Hymenochaetales (Hymenochaetales)	Rodentia (Rodents)
Family	Hymenochaetaceae	Cricetidae
Genus	Inonotus	Oligoryzomys
Species	Inonotus cuticularis	Oligoryzomys delicatus

Conservation Status

Clustered Bracket

VU — Vulnerable

Delicate Pygmy Rice Rat

DD — Data Deficient

Physical Characteristics

Attribute	Clustered Bracket	Delicate Pygmy Rice Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clustered Bracket

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Delicate Pygmy Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Clustered Bracket

Inonotus cuticularis, the clustered bracket, is a polypore fungus in the family Hymenochaetaceae that grows on living and dead hardwood trees across the northern hemisphere. The fruiting bodies are bracket-shaped, overlapping in tiered clusters, with a yellowish-brown to rusty-brown upper surface that darkens with age, and a pale to golden pore surface beneath. This species causes white heart rot in its host trees, degrading the structural integrity of trunks and major branches. It commonly attacks living oaks, beeches, and other broadleaf trees, as well as occurring on dead wood. Inonotus cuticularis is listed as Vulnerable by the IUCN, reflecting its association with old-growth and veteran trees that are increasingly rare in managed European and North American landscapes. The decline of old-growth forest and the removal of veteran trees from managed woodlands and parklands has reduced suitable habitat for many bracket fungi. Conservation of ancient and veteran trees is therefore important for maintaining populations of this and many other wood-decay fungi with similar old-growth associations.