Campanella mexicana is one of the three species reported for the genus and the only one exclusively from mountain cloud forests in Mexico. Since its description it has any more records. It may be endangered since it is a very rare fungus probably endemic to mountain an endangered mountain cloud forest.
Because the lack of study in this group of fungi and the scarce information of its real distribution and ecology, it is not possible to infer the status of its population, distribution range and association to the mountain cloud forest. In consequence, the fungi must be treated as Data deficient.
Campanella mexicana is a small (5-15 mm), white-greyish, semi sessile, gelatinous and translucid, discoid gilled fungi. It has a short stipe, smooth to finely villous pileus, and venous hymenium. The vellosities of the pileus are formed by subcylindric hyphae, sometimes submoniliform with wide heads. It resembles C. merulina which has a pileus with a true ixocutis, branched structures embedded in the gelatin and smaller inamyloid spores.
Given its small size and the lack of monographic studies in Mexico it is very likely to be under-sampled.
Campanella mexicana is one of the three species reported for the genus and the only one exclusively from mountain cloud forests in Mexico. Since its description it has any more records. It may be endangered since it is a very rare fungus probably endemic to mountain an endangered mountain cloud forest. However, because the lack of study in this group of fungi and the scarce information of its real distribution and ecology, it is not possible to infer the status of its population, distribution range and association to the mountain cloud forest. In consequence, the fungi must be treated as Data deficient.
There are 39 recognized species of Campanella worldwide (http://www.indexfungorum.org). In Mexico, there are three species recorded (C. heterobasidiata, C. merulina, and C. mexicana), although Campanella mexicana has been recorded only once from its type locality in remnants of mountain cloud forests in Morelos state between Mexico city and Cuernavaca (Guzmán & Guzmán-Dávalos 1985).
There are no occurrences registered in GBIF (GBIF secretariat 2017). Campanella mexicana is only known from its type locality at “La Pera”, alongside Mexico-Cuernavaca Highway 95 (Km 66), Morelos. Given its small size and the lack monographic studies in Mexico it is very likely to be under-sampled. The species has never collected or listed again because a lack of study in this group of fungi. Thus, it is not possible to infer the status of its population.
Population Trend: Uncertain
Gregarious, on dicotyledonous deadwood. Known only from its type locality, in remnants of mountain cloud forests (2200 masl).
The only record of Campanella mexicana comes from a highly urbanized area next to a very crowded highway, which originally was covered by a mountain cloud forest. One possible threat is the edge effect that may limit its dispersion and growth. Based on climate change models, mountain could forest in Mexico is estimated to decline 68% over the next 60 years (Ponce-Reyes et al. 2012), this will represent a decline in the extent and quality of the habitat larger than 50% over three generations (about 50 years). However, with current data it is not possible to ensure that C. mexicana only develops on this ecosystem.
The type locality of Campanella mexicana is considered under the territory of El Tepozteco National Park, but its location alongside a very concurrent highway represents a huge pressure for those forests.
To perform phylogenetic analysis using the type specimen to elucidate the species relationships with other species of the genus and possibly found new occurrences. Related specimens have been moved to other genera such as Marasmiellus and Tetrapyrgos (Honan et al. 2015) so it is possible that some herbaria specimens could have been misidentified. Furthermore, an increase in sampling effort to locate some other populations of the species, particularly in mountain cloud forests near the type locality.
There is no report about edibility or use of this species.
Campanella mexicana Guzmán & Guzm.-Dáv. in GBIF Secretariat (2017). GBIF Backbone Taxonomy. Checklist dataset [https://doi.org/10.15468/39omei] Accessed via GBIF.org on April 23, 2019.
Guzmán G, Guzmán-Dávalos L (1985) New records and species of higher fungi from Mexico. Revista Mexicana de Micología 1: 259-267.
Honan AH, Desjardin DE, Perry BA, Horak E & Baroni TJ (2015) Towards a better understanding of Tetrapyrgos (Basidiomycota, Agaricales): new species, type studies, and phylogenetic inferences. Phytotaxa, 231: 101-132.
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