• Proposed
  • Under Assessment
  • EWPreliminary Assessed
  • 4Assessed
  • 5Published

Melanoleuca clelandii Grgur.

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Scientific name
Melanoleuca clelandii
Author
Grgur.
Common names
 
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Agaricales
Family
Tricholomataceae
Assessment status
Preliminary Assessed
Preliminary Category
EW
Proposed by
Patrick Leonard
Assessors
Patrick Leonard
Editors
Pamela Catcheside, Patrick Leonard

Assessment Notes

Justification

Not recorded since 1917.


Taxonomic notes

Pileus: convex then applanate; up to 150 mm diameter; matt, somewhat irregular, grey brown at the centre, yellow brown towards margin.
Gills: adnate; crowded; white becoming cream; lamellulae present.
Stipe: cylindrical or attenuated at centre; 45 × 20 mm; fibrillose; white.
Flesh: white.
Spore print: white.
Spores: ellipsoid; 8 – 10.4 × 4.9 – 7.2 µm, average 9 × 5.7µm, average Q = 1.6; verrucose with an amyloid plage.
Cheilocystidia: not described by Cleland or Grgurinovic but might be expected to have terminal crystals.


Why suggested for a Global Red List Assessment?

A large fungus which is difficult to identify without a microscope. Melanoleuca is a genus that is not frequently found or identified to species level. As such it would represent a challenge to citizen scientists and encourage the use of microscopes and the adoption of rigorous identification techniques. It also commemorates the name of John Cleland a pioneer of mycology in Australia.


Geographic range


Population and Trends

The two records from South Australia date from 1917. The fungus has not been reported from South Australia for over a century and must be presumed to be extinct.

Population Trend:


Habitat and Ecology


Threats

The South Australian site at Mt Lofty is protected, but it is heavily used for recreation. Nearby Beaumont where Cleland also found this species is largely urbanised. The site has been visited regularly by mycologists as it was known as one of Cleland’s main collecting sites. The absence of any records for over a century suggests that the fungus is now extinct in South Australia.


Conservation Actions

List as extinct.


Research needed

Continued observation recording at Mt Lofty.


Use and Trade


Bibliography

Atlas of Living Australia (2019):https://biocache.ala.org.au/occurrences/search?
Dahlberg A. and Mueller G.M. (2011) Applying IUCN red-listing criteria for assessing and reporting on the conservation status of fungal species. Fungal Ecology 4: 147-162.
Geospatial Conservation Assessment Tool: geocat.kew.org
Global Biodiversity Information Facility: gbif.org
Grgurinovic C. (1985) Melanoleuca clelandii. Mycotaxon 23: 231-232.


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted