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Two new species of Lactifluus (Fungi, Russulales) from tropical Quercus forest in eastern Mexico.


ABSTRACT: 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 (rpb2) sequence dataset of species of Lactifluus is provided. In the phylogeny inferred, one of the new species is sister to L. dissitus Van de Putte, K. Das & Verbeken and the other belongs to the group of species of L. piperatus (L.) Kuntze, sister to an unidentified species from U.S.A. The studied taxa grow under Quercus oleoides in the study site. The species are presented and illustrated here.

SUBMITTER: Montoya L 

PROVIDER: S-EPMC6811376 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Two new species of <i>Lactifluus</i> (Fungi, Russulales) from tropical <i>Quercus</i> forest in eastern Mexico.

Montoya Leticia L   Caro Abraham A   Ramos Antero A   Bandala Victor M VM  

MycoKeys 20191016


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 nu  ...[more]

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