Two new species of Lactifluus subgenus Lactifluus were discovered during a three-year monitoring of the ectomycorrhizal fungi in a tropical oak forest from central Veracruz, Mexico. Systematic sampling of basidiomes allowed recording of the morphological variation of fruit-bodies in different growth stages along with their fructification season. Both new species were distinguished, based on macro- and micromorphological features and on molecular data. A phylogenetic analysis of a concatenated nuc rDNA ITS, D1 and D2 domains of nuc 28S rDNA (LSU) and the 6-7 region of the second largest subunit of the RNA polymerase II (2) sequence dataset of species of is provided. In the phylogeny inferred, one of the new species is sister to Van de Putte, K. Das & Verbeken and the other belongs to the group of species of (L.) Kuntze, sister to an unidentified species from U.S.A. The studied taxa grow under in the study site. The species are presented and illustrated here.
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