Ascomycetes from the relic forest of Oreomunnea mexicana, Oaxaca, Mexico

Ricardo Valenzuela, Tania Raymundo, Pamela Reyes, Jorge Guzmán-Guillermo, Salvador Acosta, Julio Cesar Ramírez-Martínez, Isolda Luna-Vega

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

La Esperanza is an Oaxacan relic area of the Tertiary, dominated by the big tree Oreomunnea mexicana (Juglandaceae). The forest is part of the priority region for the conservation of La Chinantla and constitutes one of the most conserved Mexican tropical montane cloud forests. We studied the Ascomycetes fungi and found 63 species, of which 32 are new records for Oaxaca. Ascocoryne inflata, Calyculosphaeria macrospora, Cercophora costaricensis, Chaetosphaeria ellisii, Coccomyces limitatus, Lasiosphaeria ovina, Leptogidium dendriscum, Marthamyces quadrifidus, Stereocaulon didymicum and Thelonectria lucida are new records for Mexico. Xylaria was the most diverse genus with 12 species. The most abundant species were Xylaria arbuscula and Lachnum apalum. The main growth habit was lignicolous. The tropical montane cloud forest of La Esperanza has unique characteristics allowing great taxonomic diversity of Ascomycetes.

Original languageEnglish
Pages (from-to)19-44
Number of pages26
JournalPhytotaxa
Volume528
Issue number1
DOIs
StatePublished - 9 Dec 2021

Keywords

  • conservation
  • endemism
  • fungi
  • mountains
  • tropical montane cloud forests

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