Fungalpedia – Note 1694, Ameghiniella

Ameghiniella. Speg.

Index Fungorum, Facesoffungi, MycoBank, GenBank

Classification: Cordieritidaceae, Helotiales, Leotiomycetidae, Leotiomycetes, Pezizomycotina, Ascomycota, Fungi

Species of Ameghiniella have black, shortly stipitate, irregularly lobate, wrinkled, relatively large (~2 cm) apothecia that often grow as rosettes. The ectal excipulum is composed of thick-walled, protruding round-celled or hyphoid elements, oriented perpendicular to the surface, and shows an orangebrown ionomidotic reaction. We consider Ionomidotis chilensis Durand as a synonym of Ameghiniella australis.This synonymy was established by Gamundi (1991), who noted the similarity of the excipulum of the two species. Ameghiniella australis is distributed in South America (Zhuang 1988b; Gamundi 1991; Gamundí and Romero 1998), and based on the multigene phylogeny, is related to particular species currently assigned to Ionomidotis.

Type species: Ameghiniella australis Speg., Boln Acad. nac. Cienc. Córdoba 11(2): 271 (1887) [1888]

References

Pärtel K, Baral HO, Tamm H, Pôldmaa K. 2017. Evidence for the polyphyly of Encoelia and Encoelioideae with reconsideration of respective families in Leotiomycetes. Fungal Diversity. 82:183–219. https://doi.org/10.1007/s13225-016-0370-0.