Angelin vs Common Nut Truffle

Andira inermis compared with Hymenogaster vulgaris

Key Differences

• Angelin is Least Concern while Common Nut Truffle is Data Deficient.

Taxonomic Classification

Rank	Angelin	Common Nut Truffle
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Basidiomycota (Club Fungi)
Class	Magnoliopsida (Dicots)	Agaricomycetes (Mushrooms)
Order	Fabales (Legumes & Allies)	Agaricales (Gilled Mushrooms)
Family	Fabaceae	Hymenogastraceae
Genus	Andira	Hymenogaster
Species	Andira inermis	Hymenogaster vulgaris

Conservation Status

Angelin

LC — Least Concern

Common Nut Truffle

DD — Data Deficient

Physical Characteristics

Attribute	Angelin	Common Nut Truffle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Angelin

Habitat

Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands, among 4 distinct biome types spanning the Afrotropic and Palearctic and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Chad, Guinea), Asia (India, Singapore), North America (Cuba), and South America (Brazil, Colombia).

Common Nut Truffle

Habitat

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

Range

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

Angelin

The Angelin (Andira inermis) is a species in the genus Andira. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical grasslands and savannas, flooded grasslands and savannas, and deserts and xeric shrublands, among 4 distinct biome types spanning the Afrotropic and Palearctic and Indom.

Common Nut Truffle

<em>Hymenogaster vulgaris</em>, the common nut truffle, is a hypogeous (below-ground) fungus in the family Hymenogastraceae, order Agaricales. This sequestrate species produces enclosed, truffle-like fruiting bodies that mature underground and rely primarily on small mammals and invertebrates for spore dispersal, as the sporocarps never open to release spores aerially. <em>Hymenogaster vulgaris</em> typically forms ectomycorrhizal associations with hardwood tree species, particularly oaks and beeches, in temperate European forests. Its geographic range includes Denmark, Norway, Portugal, Sweden, and the United States, reflecting a somewhat scattered distribution across temperate zones. The species is currently assessed as Data Deficient by the IUCN, indicating that insufficient information exists to evaluate its conservation status, likely because hypogeous fungi are difficult to survey and their population trends are poorly known. Biological traits such as lifespan, body size, and diet remain poorly documented for this species. As an ectomycorrhizal fungus, <em>Hymenogaster vulgaris</em> plays a critical role in facilitating nutrient uptake in host trees and supporting forest health across its temperate range.