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.
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.
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]
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.
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
On soil in podocarp forest.
Habitat clearance, climate disruption
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.
Cooke, M.C. 1879: New Zealand fungi. Grevillea 8(46): 54-68