Abstract Detail

Bryology and Lichenology

Huereca, Alejandro [1], Guzmán-Guillermo, Jorge [2], Herrera-Campos, María de los Ángeles [3], Salcedo-Martínez, Sergio [4], McMullin, Troy [5].

Calicioid Fungi and Lichens of Mexico.

Lichenology in Mexico has made notable progress in recent years, but not all groups have been intensively studied, such as calicioid fungi and lichens. The study of this group began in 1852, with the description of Acroscyphus sphaerophoroides from central Mexico, followed by records made by Bouly de Lesdain and Cyrus Guernsey Pringle in the early 1900's. However, most of the known species are the result of collections by Klaus Kalb in southern Mexico, reviewed by Leif Tibell, who also did extensive collecting in northwestern Mexico at the beginning of the 20th century for the Greater Sonoran Desert project. In all known works over the last c. 170 years, a total of 38 species had been reported in Mexico. Here, we present a summary of previous work and new contributions based on fieldwork conducted in the northeast and center of the country by A. Huereca and J. Guzman-Guillermo, in the years 2018-2022, along with an extensive review of herbarium collections by R.T. McMullin. We report two genera, Phaeocalicium and Stenocybe, and 19 species for the first time from Mexico: Calicium abietinum, C. lutescens, C. parvum, Chaenotheca brunneola, Ch. hispidula, Ch. xyloxena, Chaenothecopsis australis, Chp. consociata, Chp. debilis, Chp. montana, Chp. perforata, Phaeocalicium polyporaeum, P. populneum, Schistophoron tenue, Sphinctrina anglica, Sp. turbinata, Stenocybe major, Thelomma californicum,  and Tylophoron hybernicum. Our new records increase the number of calicioids known in the country to 57 species. We also provide descriptions of known distributions and ecological preferences, and highlight their importance as indicators of ecological continuity. Descriptions of several new taxa discovered during our field work are also provided.  Although it is a considerable update to our knowledge of this group, given the diversity of biomes and heterogeneous topography in Mexico, we expect that many calicioids remain undocumented.

1 - University of Alberta, Department of Biological Sciences, CW405, Edmonton, AB, T6G 2R3, Canada
2 - Universidad Veracruzana, Facultad de Biología,, campus Xalapa, Circuito Gonzalo Aguirre Beltrán s/n, Zona Universitaria, 91090 Xalapa-Enríquez, Veracruz, Mexico
3 - Universidad Nacional Autónoma de México, Departamento de Botánica, Instituto de Biología, Apdo. Postal 70–3627, C. P. 04510, Ciudad de México, México
4 - Universidad Autónoma de Nuevo León, Laboratorio de Biología de Criptógamas, Facultad de Ciencias Biológicas, Nuevo León, San Nicolás de los Garza, México
5 - Canadian Museum of Nature, Canadian Museum of Nature, 1740 Ch. Pink, Gatineau, Québec, J9J 3N7, Canada

North America
Ecological Indicators 
Old-Growth Forests.

Presentation Type: Poster
Number: PBL007
Abstract ID:894
Candidate for Awards:None

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