Phylogeny of Protoparmelioideae based on maximum likelihood analysis of ITS rDNA sequences of Protoparmelia and Neoprotoparmelia (Maronina s.l.). Numbers above branches indicate bootstrap support. Terminal clades were collapsed at the species level for clarity of presentation. The length of the triangle corresponds to branch lengths. Numbers in parentheses indicate number of specimens included in collapsed clade. Voucher information of each specimen in a clade is given in Table 1; New Neoprotoparmelia species are marked in red and bold.