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  • Under Assessment
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Cantharellus tenuithrix Buyck & V. Hofstetter

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Scientific name
Cantharellus tenuithrix
Author
Buyck & V. Hofstetter
Common names
 
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Cantharellales
Family
Cantharellaceae
Assessment status
Under Assessment
Proposed by
Noah Siegel
Assessors
Noah Siegel
Comments etc.
James Westrip

Assessment Notes

Justification

Cantharellus tenuithrix is a species of golden chanterelle that was described from hardwood forests in Texas, USA, and has also been recorded from Tennessee and Florida.

Most records pre-2011 would have been recorded under the catchall name for golden chanterelles, Cantharellus cibarius. It also appears to be macro-morphologically indistinct from Cantharellus flavus, and can only be reliably distinguished by microscopic features or TEF-1 sequence data. Due to the limited number of sequenced collections, or observations with micro data (on Mushroom Observer and iNat) data to assess population size and trends is lacking at this time.

We can infer that it is likely widespread across southeast USA, appears to occur in a habitat not under threat, thus warranting a Least Concern listing.


Taxonomic notes

Cantharellus tenuithrix was described from eastern Texas, USA (Buyck & Hofstetter 2011).

Currently Cantharellus tenuithrix is believed to be indistinguishable from C. flavus in the field (Buyck et al. 2016), and requires microscopic examination, and/or by TEF-1 sequence data analysis.

Previous to work published on golden chanterelles in North America (Buyck & Hofstetter 2011, Foltz et al. 2013), records of this species would have been recorded under the catchall name, Cantharellus cibarius.


Why suggested for a Global Red List Assessment?

Cantharellus tenuithrix is a species of golden chanterelle that was described from hardwood forests in Texas, USA, and has also been recorded from Tennessee and Florida.

Most records pre-2011 would have been recorded under the catchall name for golden chanterelles, Cantharellus cibarius. It also appears to be macro-morphologically indistinct from Cantharellus flavus, and can only be reliably distinguished by microscopic features or TEF-1 sequence data. Due to the limited number of sequenced collections, or observations with micro data (on Mushroom Observer and iNat) data to assess population size and trends is lacking at this time.

We can infer that it is likely widespread across southeast USA, appears to occur in a habitat not under threat, thus warranting a Least Concern listing.


Geographic range

The geographic range of Cantharellus tenuithrix remains poorly known, due to difficulty of positive identification without TEF-1 sequence analysis, and most golden chanterelles being recorded as C. cibarius in North America prior to taxonomic work on this group (Buyck & Hofstetter 2011, Foltz et al. 2013).

Currently, sequenced-confirmed collections come from Texas (Buyck & Hofstetter 2011), Florida and Tennessee (MyCoPortal 2021), USA, and it is likely that this species is widespread across southeast USA. Extent of distribution to the north is largely unknown, and the application of the name C. flavus (without the necessary microscopic work, or sequence data).


Population and Trends

Too little is known about Cantharellus tenuithrix to make a robust assessment on population size and trends. Based on location where there are sequenced confirmed populations (Texas, Florida, and Tennessee), populations appears to occurs over a widespread area. Data to assess trends and population size will require more sequenced-confirmed collections, due to the difficulty of distinguishing this species from other golden chanterelles.

Population Trend: Uncertain


Habitat and Ecology

Cantharellus tenuithrix is an ectomycorrhizal species, likely associated with hardwoods. Buyck & Hofstetter (2011) report collections from “oak-hickory forest on sandy soil, and “pine-oak woods on sandy soil”. More collections are needed to fully understand habitat requirements and restraints.

Temperate Forest

Threats

No specific threats have been identified with regards to this species.


Conservation Actions

No specific conservation actions have been identified with regards to this species at this time.


Research needed

A better understanding on population numbers, distribution, and trends of Cantharellus tenuithrix.


Use and Trade

Cantharellus tenuithrix (and all other golden chanterelles in North America) are edible, and are indiscriminately collected by foragers and small scale commercial pickers.

Food - human

Bibliography

Buyck, B. and Hofstetter, V. 2011. The contribution of tef-1 se-quences to species delimitation in the Cantharellus cibarius complex in the southeastern USA. Fungal Diversity 49: 35–46

Buyck, B., Olariaga, I., Looney, B., Justice, J., and Hofstetter, V. 2016. Wisconsin chanterelles revisited and first indicationsf or very wide distributions of Cantharellus species in the United States East of the Rocky Mountains. Cryptogamie Mycologie 37(3): 345–366.

Foltz, M.J., Perez, K.E., and Volk, T.J. 2013. Molecular phylogenyand morphology reveal three new species of Cantharellus within 20 m of one another in western Wisconsin, USA. Mycologia 105: 447–461.

iNaturalist. 2021. http://www.inaturalist.org. Accessed on March 17.

Mushroom Observer. 2021. http://mushroomobserver.org. Accessed on March 17.

MyCoPortal. 2021. http://mycoportal.org/portal/index.php. Accessed on March 17.


Country occurrence

Regional Population and Trends

Country Trend Redlisted