• Proposed
  • Under Assessment
  • Preliminary Assessed
  • Assessed
  • DDPublished

Limacella solidipes (Peck) H.V. Sm.

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Scientific name
Limacella solidipes
Author
(Peck) H.V. Sm.
Common names
Limacelle à pied ferme
Ringed Limacella
Peck's Vanguard Limacella
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Agaricales
Family
Amanitaceae
Assessment status
Published
IUCN Red List Category
DD
Proposed by
Annabelle Langlois
Assessors
Annabelle Langlois
Contributors
Patrick Leacock
Reviewers
Anders Dahlberg

Assessment Notes

Data Deficient (DD).

Justification

Limacella solidipes is a rare saprotrophic fungus native to northeastern North America. Despite being relatively easy to recognize, the species has been reported from only five sites since its description in 1898. The fungus is found on the ground in swampy or wet deciduous or mixed forests. Its apparent restriction to wetlands suggests declining population size associated with loss of habitat. However, until more information is available on the population size of L. solidipes, its frequency, status and trend in appropriate habitat, the species is assessed as DD (Data Deficient).


Taxonomic notes

Even though they are identified as Limacella solidipes, some specimens reported from western North America (California, Oregon, Washington, Alaska) are probably from a different species (Tulloss, personal communication). These specimens are ignored from this assessment.


Why suggested for a Global Red List Assessment?

Even though Limacella solidipes is relatively easy to recognize, the species has been reported from only 5 sites since its description in 1898 by Peck. Its apparent restriction to wetlands suggests declining populations.


Geographic range

Limacella solidipes has been only been found in northeastern North America. The reports from the United States are in New York (Albany Co.; Morgan 1907), Minnesota (Pine Hollow; mycoportal.org) and North Carolina (Orange Co.; mycoportal.org). It has also been reported from Canada in Quebec province (Rimouski-Neigette and La Mitis regions; Després 2007, GBIF 2014, Labbé 2014).


Population and Trends

Limacella solidipes appear to be a very rare species only known from five sites in northeastern North America. The species was last seen in 2007 in Quebec province, Canada. Beside the specimens from Quebec province, no observation has been reported since 1927. More information on Limacella solidipes population size and distribution, its occurrence in appropriate habitat as well as the status and
trend of the habitat is needed to confidently evaluate population trends or the total number of mature
individuals.

Limacella solidipes is a large mushroom, and according to a key of Limacella in North America (Kuo 2006) it is easily identified. However, Limacellas are not well known by amateur mycologists and can be mistaken for white Amanitas. Also, Limacella solidipes descriptions from different sources are slightly inconsistent. Therefore, it is thought that the species has been rarely overlooked, but that it may have been misidentified when found.

Descriptions from different sources are slightly inconsistent. This species might have been forgotten by mycologists or misidentified for a number of years. Limacella solidipes would then be more common than it is suggested by the data currently available.

USA: One site in NY (prior to 1907), one site in MN (1926), two sites in NC (1920//1927; about 1 km from each other). See Morgan (1907), MyCoPortal, Smith (1937). Canada: Two sites in Quebec province (2004//2007). See Després 2007 and GBIF.

Population Trend: Uncertain


Habitat and Ecology

Limacella solidipes is a saprotrophic fungus species that fruits in summer and fall on the ground of deciduous or mixed forests (Labbé 2014). It grows in wet, damp or swampy areas (Morgan 1907). The species has also been reported on humus under alder (Alnus) on swampy grounds (Tulloss 2016).

Temperate ForestBogs, Marshes, Swamps, Fens, Peatlands [generally over 8 ha]

Threats

Limacella solidipes is restricted to swampy/wet areas, and wetlands are often negatively impacted by human population growth and urban sprawl in North America (USDA 1995). Thus, this species might be threatened by habitat loss or might have disappeared from certain known/unknown sites because of habitat loss.

Residential & commercial development

Conservation Actions

There is no indication that some Limacella solidipes populations are located in protected areas. No conservation action is currently being taken to protect this species. Sites where L. solidipes is currently known to grow should be protected. Within-range habitat should be inventoried to better define Limacella solidipes population sizes, distribution and trends. The inventory of sites where the species was seen decades ago should be prioritized. The type specimen should be studied in order to clarify its description. Specimens recently collected in Quebec province (Canada) should be compared to the type specimen.

Site/area protection

Research needed

Within-range habitat should be inventoried to better define Limacella solidipes populations size, distribution and trends. The inventory of sites where the species was seen decades ago should be prioritized.

The type specimen should be studied in order to clarify its description. Specimens recently collected in Quebec province (Canada) should be compared to the type specimen.

TaxonomyPopulation size, distribution & trends

Use and Trade


Bibliography

Consortium of Pacific Northwest Herbaria. (2016). Limacella solidipes. University of Washington Herbarium. Retrieved 20 April 2016 from pnwherbaria.org.
Després, J. (2007). Limacella solidipes / Limacelle à pied ferme. Retrieved 20 April 2016 from flickr.com.
Kuo, M. (2006). The genus Limacella. Retrieved 22 April 2016 from mushroomexpert.com.
Lepiota solidipes. Retrieved 20 April 2016 from mycoportal.org.
Limacella solidipes. (2014). Retrieved 20 April 2016 from gbif.org.
Limacella solidies. (2014). Retrieved 20 April 2016 from mycoquebec.org.
MatchMaker: Mushrooms of the Pacific Northwest. (2009). Limacella solidipes. Retrieved 20 April 2016 from forestrydev.org.
Morgan, A. P. (1907). North American Species of Lepiota. The Journal of Mycology 12 (4): 154–159.
Smith, A. H. (1937). New and Unusual Agarics from the Western United States. Mycologia 29 (1): 45–59.
Tulloss, R.E. Limacella solidipes. Retrieved 20 April 2016 from amanitaceae.org.
USDA. (1995). Wetlands Values and Trends. Natural Resources Conservation Service, United States Department of Agriculture. Retrieved 15 April 2016 from nrcs.usda.gov.


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted