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

Berggrenia aurantiaca Cooke

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Scientific name
Berggrenia aurantiaca
Author
Cooke
Common names
 
IUCN Specialist Group
Cup-fungi, Truffles and Allies
Kingdom
Fungi
Phylum
Ascomycota
Class
Pezizomycetes
Order
Pezizales
Family
Incertae sedis
Assessment status
Under Assessment
Proposed by
Peter Buchanan
Assessors
Peter Buchanan
Editors
Tom May
Contributors
Peter Buchanan, Jerry Cooper
Reviewers
Anders Dahlberg

Assessment Notes

Suggest it to be assessed. Conspicuous, certainly overlooked but obviously very rare. May qualify for the D1 criteria, difficult to state something about decline if very few records and a not so precise habitat knowledge.
/Anders

Taxonomic notes

Species was described by Cooke in 1879, based on 2 Berggren collections from Waitaki, South Is. Known only from 4 New Zealand collections (type + 1 collection at Kew; 2 collections in PDD) - 3 widely separate locations.  Actively looked for by ascomycete specialist PR Johnston and by gasteromycete expert RE Beever. 

Berggrennia aurantiaca is the type species of a monotypic genus, distinctive and relatively large (c. 2 cm across), superficially similar to the bright orange Paurocotylis pila but perhaps a little paler, and with a distinctive, pale yellow, short, stalk-like base.

 


Why suggested for a Global Red List Assessment?

Endemic to New Zealand, known from only 4 collections, colourful and reasonably conspicuous species, last collected 1980. Actively looked for since. Type locality in area of large modification in land use. Three recorded locations widely separated.

[10 July: Awaiting KML file to include South Is. (type) location ie, 3 locations]


Geographic range

Endemic to New Zealand: 
2 x widely separated North Island locations:  Piha, Auckland and Rimutaka Forest Park, Wellington. 
1 x South Island location: Waitaki, vic Oamaru and inland.  “Waitaki” applies to a river from Southern Alps to east coast, and an administrative district.
Only 4 specimens known, 2 from North Is. (1948, 1980); 2 from South Is. (1880s)
Forest clearance and farming has likely removed the Waitaki site since Berggren’s collections in 1880s.  The Wellington and Auckland sites are more likely to still have their habitat intact.


Population and Trends

Extremely rarely encountered - last seen 1980. Suggesting very small populations, although 3 widely separated locations across New Zealand. Trend unknown, although the likely loss to farming of the only documented South Is. habitat suggests early decline at some point after its description in 1880s.

Population Trend: Uncertain


Habitat and Ecology

On soil in podocarp forest.

Temperate Forest

Threats

Habitat clearance, climate disruption

Tourism & recreation areasHabitat shifting & alteration

Conservation Actions

None


Research needed

A fresh collection would enable DNA sequence matching to eDNA datasets - to gain indication of presence and population trend.  Our newest (1980) collection is likely too old for DNA.

Population size, distribution & trends

Use and Trade

None

Unknown

Bibliography

Cooke, M.C. 1879: New Zealand fungi. Grevillea 8(46): 54-68


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted