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

Macowanites lilacinus A.H. Sm.

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Scientific name
Macowanites lilacinus
A.H. Sm.
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Under Assessment
Proposed by
Catia Canteiro
Susana C. Gonçalves, Susana P. Cunha
Comments etc.
Catia Canteiro

Assessment Notes

All other Macowanites species were transferred to Russula. This species was not included in the study and was not transferred. The right name is probably Russula lilacinus (or similar), but it does not technically exist. I evaluated the species under Macowanites and noted this in the taxonomy section.


Macowanites lilacinus is a secotioid fungus only known from a single collection in North America from 1962. The lack of more recent records suggests this may be a rare species but more research and targeted search efforts are needed to estimate current population size. Therefore, the species is assessed as Data Deficient (DD).

Taxonomic notes

Only remaining species in the Macowanites genus in Species Fungorum (2023). Other species in this genus were transferred to Russula based on molecular analysis (Elliott and Trappe, 2018), but M. lilacinus was not included in this study and therefore not transferred. For this reason, this species should be targeted for taxonomic revision.

Why suggested for a Global Red List Assessment?

Geographic range

Only known from one location in North America (Payette National Forest in Idaho)  (Smith, 1963).

Population and Trends

This species is only known from its description, from one collection in 1962 (Smith, 1963). Given the lack of any further records or information it is not possible to calculate current population size.

Population Trend: Uncertain

Habitat and Ecology

Solitary under spruce and fir (Smith, 1963).

Temperate Forest



Conservation Actions

Research needed

Taxonomic review is needed to confirm placement in Russula genus, along with targeted search efforts to understand current population size, distribution and habitat preference.

TaxonomyPopulation size, distribution & trendsLife history & ecologyThreats

Use and Trade


Country occurrence

Regional Population and Trends

Country Trend Redlisted