Parmotrema paulense (Zahlbr.) Hale (1974a: 338) MycoBank no. 343102 Parmelia paulensis Zahlbr. (1909: 175) MycoBank no. 398025 Type:— BRAZIL. São Paulo: In monte Jaraguá prope Taipas, 800–1050 m, corticola, June 1901, V. Schiffner s.n. (W!, type collection). In his monograph of Parmelia subgenus Amphigymnia, Hale (1965a: 335) cited, under the name Parmelia paulensis, a specimen from Réunion [‘no locality, Rodriguez, 1890 (P)’]. In their subsequent circumscriptions of P. paulensis, neither Kurokawa (1969) nor Hale (1971b) re-examined this material, which is probably the same as that which was cited by Hue (1899: 199) under the name Parmelia melanothrix var. lacinulata. In PC we found a collection of two thalli (no PC 07222516) with a label written by Hue ‘ Parmelia melanothrix var. lacinulata Mull.Arg., legerunt Fr. Rodriguez et M. Chauvet, Bourbon, 1890 et 1893’. One thallus belongs to the laciniate morphotype of Parmotrema intonsum, the other to the morphotype with granular isidia of the same species. It seems likely that the latter corresponds to the specimen cited by Hale (1965a), given his concept of Parmelia paulensis at that time, although no annotation by this author appears on the attached label. The species was also reported from Réunion by van den Boom et al. (2011). The collection concerned (P. van den Boom 40489) is Parmotrema intonsum (isidiate morphotype).

Published as part of Masson, Didier, Magain, Nicolas & Sérusiaux, Emmanuël, 2024, Small island but great diversity: thirty six species of Parmotrema (Parmeliaceae, lichenized Ascomycota), including sixteen new species, on Réunion (Mascarenes), with additional data from the Western Indian Ocean, pp. 1-138 in Phytotaxa 657 (1) on page 117, DOI: 10.11646/phytotaxa.657.1.1, http://zenodo.org/record/13217474