Angelina (fungus)

Angelina is a genus of fungi within the family Cryptomycetaceae. These fungi are typically found on dead wood, often decaying branches of deciduous trees. The defining characteristic of Angelina species is their resupinate, crust-like fruiting bodies (ascomata). The ascomata are typically thin and closely adherent to the substrate, often appearing as a dark, waxy coating. The texture can range from smooth to slightly wrinkled or granular.

Microscopically, Angelina species are characterized by their asci, which are club-shaped and contain typically eight ascospores. The ascospores themselves are hyaline (translucent), smooth-walled, and often ellipsoid or oblong in shape. The genus is differentiated from other similar crust fungi primarily by a combination of macroscopic and microscopic features. Accurate identification usually requires microscopic examination of the ascospores and asci.

The ecological role of Angelina fungi is primarily saprobic, meaning they obtain nutrients from decaying organic matter. They play a role in the decomposition of wood in forest ecosystems. Some species are relatively common and widespread, while others are more restricted in their distribution.