• Proposed
  • Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Phylloboletellus chloephorus Singer

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Scientific name
Phylloboletellus chloephorus
Author
Singer
Common names
 
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Boletales
Family
Boletaceae
Assessment status
Under Assessment
Proposed by
Catia Canteiro
Assessors
Susana P. Cunha, Susana C. Gonçalves
Comments etc.
Catia Canteiro

Assessment Notes

Unsure between LC and DD. I assumed a x2 multiplier (rather than x10) because it is solitary to subgregarious or subcaespitose which limits population size, even with a x500 or x1000 multiplier for unknown locations. I can argue for LC because even if population size is small there is no evidence of population reduction, but I am hesitant to do so because trophic mode has not been established and number of actual host could potentially be much smaller. I have posted both justifications bellow.
Note: some collections were made by G.M.Mueller, namely record identified only to genus level.

Justification

P. chloephorus is a species known from Mexico and Argentina. It has been recorded in a small number of sites (8) and population size is estimated at only 8000 mature individuals, bellow IUCN’s population size threshold for threatened categories through criterion C. However, it is not possible to establish whether there is population reduction given that it has a potentially very wide distribution, different suitable habitats as well as numerous potential hosts. Without further targeted search efforts or more research to identify hosts it is difficult to differentiate where this species is threatened or Least Concern, so it is as assessed as Data Deficient (DD).

P. chloephorus is a species known from Mexico and Argentina. It has been recorded in a small number of sites (8) and population size is estimated at only 8000 mature individuals, bellow IUCN’s population size threshold for threatened categories through criterion C. However, given its likely wide distribution, different suitable habitats and numerous potential hosts, there is no evidence of significant population reduction and the species is assessed as Least Concern (LC).


Taxonomic notes

P. chloephorus is the type and only species in the Phylloboletellus genus, established based on its morphological evidence. Molecular studies have since confirmed it as a monotypic genus, though its phylogenetic position remains unresolved (Farid et al. 2018). Synonym: Phylloboletellus chloephorus var. mexicanus


Why suggested for a Global Red List Assessment?


Geographic range

P. chloephorus has only been observed in Argentina and Mexico (GBIF.org, 2023), but given the distance between the two, a wider distribution in Central and South America is possible. This is also suggested by one further GBIF record from Costa Rica, but it has only been identified until the genus level.


Population and Trends

P. chloephorus has been recorded in approximately 8 sites (GBIF.org, 2023; Bandala et al., 2004). Given its wide area of potentially suitable habitat and relatively conspicuous fruitbodies, the small number of records suggests this may be an uncommon species, though this may also be caused by low search efforts. Following guidelines by Dahlberg and Mueller (2011) and assuming a x500 multiplier for unknown sites and that 2 mature individuals exist per site, population size is estimated at 8000 mature individuals.

Population Trend: Uncertain


Habitat and Ecology

Found on soil, subgregarious, solitary or subcaespitose under or near plant species belonging to Lauraceae, Myrtaceae, Sapindaceae, Ulmaceae, Fabaceae and others, in both natural habitats such as tropical forests and Tamaulipan matorral, and in coffee plantations. It has been suggested as saprotrophic and ectomycorrhizal by different authors, but its trophic mode has not yet been confirmed. (Bandala et al., 2004; Jiménez 2013; Farid et al. 2018)

Subtropical/Tropical Moist Lowland ForestSubtropical/Tropical Moist Montane ForestSubtropical/Tropical Dry ShrublandPlantations

Threats

Given its wide distribution, range of habitats and numerous potential hosts it is difficult to establish threats for this species.


Conservation Actions


Research needed

Targeted efforts in areas of suitable habitat are needed to define distribution limits and better estimate population size. Research into its trophic mode and range of hosts is also needed to help establish threats.

TaxonomyPopulation size, distribution & trendsLife history & ecologyThreats

Use and Trade


Bibliography


Country occurrence

Regional Population and Trends

Country Trend Redlisted