Rossbeevera pachydermis
(Zeller & C.W. Dodge) T. Lebel
Description:
A sequestrate, truffle-like bolete with a thick, pale peridium, bluish to violaceous staining flesh, and a marbled gleba of locules lined with brown hymenial tissue.

Peridium: Thick, pale cream to buff, smooth to slightly uneven, often developing bluish or violaceous stains when handled or cut. Firm and rubbery when fresh; surface unornamented.
Gleba: Marbled, composed of irregular locules separated by pale sterile veins. Locules lined with brown hymenial tissue. Colour pale at first, becoming grey-brown to olivaceous with maturity. Bluing reaction strong, especially in exposed areas.
Stipe: Absent or vestigial, sometimes appearing as a small basal tuft or narrowed attachment point. No reticulation or ornamentation.
Flesh: Thick, firm, pale cream; rapidly bruising blue to violaceous, especially near the peridium and along sterile veins. Odour mild.

Common name: Potato Fungus.
Habitat: Ectomycorrhizal in nothofagus forests.
Substrate: Partly buried in ground.
Distribution: New Zealand wide.
Season: Autumn.
Biostatus: Endemic.
Edible: No.
Spore print: Dark brown.
Macro images:
Rossbeevera pachydermis
Scale bar
Scale= 8.3 mm.
 
Rossbeevera pachydermis
Scale bar
Scale= 8.3 mm.
 
Scale bar
Scale= 8.5 mm.
 
Rossbeevera pachydermis
Scale bar
Scale= 6.5 mm.
 
Rossbeevera pachydermis
Scale bar
Scale= 8.3 mm.
 
The Hidden Forest
Forest Fungi