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

Boletus rawlingsii McNabb

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Scientific name
Boletus rawlingsii
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Preliminary Assessed
Preliminary Category
EN B2a & b and D1
Proposed by
Jerry Cooper
Patrick Leonard
Comments etc.
Jerry Cooper, Roy Halling, Anders Dahlberg

Assessment Notes

Yet no info of ecology, status, trends or preliminary assessment.


There have only ever been seven known collections of this fungus since its publication in 1968. It has been actively sought at FUNNZs forays and by Boletus enthusiasts. Its habitat is fragmented, declining in extent and quality through a combination of development pressures and as a result of invasive species. We infer a population of 70 mature individuals (7 functional individuals x 10) and we have allowed X 5 for yet to be discovered sites. We assess the species as endangered under B2a & b and D1.

Taxonomic notes

Boletus rawlingsii McNabb
There are several records with this name for Australia. We have discounted this as we do not at present think it is the same species as that in New Zealand.

Why suggested for a Global Red List Assessment?

Proposed by Pat Leonard. Known from 9 records from 7 locations. A species restricted to the north of the NI where it associates with tea-tree. The far north is under-represented in surveys and the AOO may be larger. Extent of Occurrence 19,383.463 km2 Area of Occupancy 28.000 km2

Geographic range

Limited to the northern part the North Island of New Zealand

Population and Trends

Boletus rawlingsii was described in the 1960s and three collections were made in that decade, there were 2 collections in the 1970s, none in the 1980s or 1990s, two in 2001/02 and none since. It would appear that the population is small and in decline. During this period there have been four FUNNZ forays that have covered this area as well a greatly increased recording due to the advent of I-naturalist. We conclude that the population is small and possibly declining.

Population Trend:

Habitat and Ecology

Boletus rawlingsii is a mycorrhizal fungus associated with Leptospermum and possibly Kunzea.


The known sites for this fungus are in Northland, Auckland and the Coromandel. The remaining myrtaceous forests are fragmented and subject to land use change from development and habitat quality appears to be declining due to recreational pressures and invasive species.

Conservation Actions

Protection of some additional myrtaceous forests and recognition of Boletus species in their management plans would be helpful to their long term conservation.

Research needed

Use and Trade


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

Manaaki Whenau - Landcare Research databases: https://nzfungi2.landcareresearch.co.nz/

McNabb, R.F.R. (1968): The Boletaceae of New Zealand. New Zealand Journal of Botany 6(2): 137-176

Mycobank: http://www.mycobank.org/

Country occurrence

Regional Population and Trends

Country Trend Redlisted