Bael Fruit vs Common Button Lichen

Aegle marmelos compared with Buellia erubescens

Key Differences

Bael Fruit is Near Threatened while Common Button Lichen is Not Evaluated.

Taxonomic Classification

Rank	Bael Fruit	Common Button Lichen
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Ascomycota (Sac Fungi)
Class	Magnoliopsida (Dicots)	Lecanoromycetes (Lecanoromycetes)
Order	Sapindales (Sapindales)	Caliciales (Caliciales)
Family	Rutaceae	Caliciaceae
Genus	Aegle	Buellia
Species	Aegle marmelos	Buellia erubescens

Conservation Status

Bael Fruit

NT — Near Threatened

Common Button Lichen

NE — Not Evaluated

Physical Characteristics

Attribute	Bael Fruit	Common Button Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bael Fruit

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, tropical and subtropical moist broadleaf forests, and deserts and xeric shrublands. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Laos, Taiwan, Timor-Leste), Oceania and the Pacific (Australia, Micronesia), and South America (Brazil). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Button Lichen

Habitat

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

Range

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

Bael Fruit

The Bael Fruit (Aegle marmelos) is a species in the genus Aegle. It is currently classified as Near Threatened on the IUCN Red List. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, tropical and subtropical moist broadleaf forests, and deserts and xeric shrublands. Populations are also found in montane and highland environment.

Common Button Lichen

<em>Buellia erubescens</em>, commonly known as the common button lichen, is a lichen species with documented occurrences across Asia, Europe, and North America, including countries such as Norway, Portugal, Sweden, Taiwan, and the United States. It typically colonizes diverse terrestrial surfaces, often found on bark, rock, or other substrates in temperate and boreal environments. Common button lichen belongs to the genus <em>Buellia</em> within the family Caliciaceae. As a crustose lichen, it typically forms tightly adhered, crust-like thalli on the surfaces it colonizes, making it characteristic of stable, undisturbed substrates. Biological traits such as average lifespan, thallus size, and biomass of this species remain poorly documented in the scientific literature. The species has not yet been formally evaluated by the IUCN, and its global conservation status therefore remains undetermined. Its occurrence across multiple continents suggests a wide ecological tolerance, though detailed population data and trend assessments are currently lacking for this taxon.