Ameghiniella
Ameghiniella Speg., IF: 157
Type species: Ameghiniella australis Speg.
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 (Fig. 1), is related to particular species currently assigned to Ionomidotis.
Reference:
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.
Recent Genus
RutstroemiaXeropilidium
Ionomidotis
Recent Species
Encoelia furfuraceaRutstroemia tiliacea
Xeropilidium dennisii