editorial

The status of the basionym for this combination is unclear. Galloway (2007) cited Lichen simplex Davies. Index Fungorum at March 2020 cited Lecidea simplex Borrer ex Hook., in Smith, Engl. Fl., Mosses, Hepaticae, Lichens, Characeae and Algae (London) 5(1): 179 (1833) Mycobank at March 202 cited Lichen simplex Davies, Transactions of the Linnaean Society of London 2: 283 (1794) as the basionym, yet gave the combination as Polysporina simplex (Taylor) Vězda, which would suggest that the basionym should be Lecidea simplex Taylor, Flora Hibernica 2: 124 (1836). The Australian online checklist (at March 2020) gives the current combination in Acarospora, but gives the authority for the basionym as Davies. This is possibly as a consequence of this paper: Westberg, Martin & Millanes, Ana & Knudsen, Kerry & Wedin, Mats. (2015). Phylogeny of Acarosporaceae (Lecanoromycetes, Ascomycota, Fungi) and the evolution of carbonized ascomata, Fungal Diversity 73: 145-158, in which it is stated: "Polysporina will be thus be treated as a synonym to Acarospora."

editorial

The accepted combination should be in Acarospora.

Westberg, M.; Millanes, A.; Knudsen, K.; Wedin, M. 2015: Phylogeny of Acarosporaceae (Lecanoromycetes, Ascomycota, Fungi) and the evolution of carbonized ascomata. Fungal Diversity 73: 145–158.