When: 2009-01-15

Seen at: Oregon, USA [Click for map]

Who: Alan Rockefeller (Alan Rockefeller)

No specimen available

Spores measure 26 – 52 × 24 – 28 micrometers (not counting the ornamentation).

The spore sacs that have just two spores have much larger spores than the sacs that have 3 or 4 spores. The spores are evenly distributed throughout the inside of the truffle.

Ice House Shaman collection, more pictures, information, discussion, and an oregon truffle hunting guide here.

Species Lists


Spores 100x
Copyright © 2009 Ice House Shaman

Proposed Names

92% (2)
Recognized by sight
Based on microscopic features: Spores 28 – 55 × 25 – 30 micrometers

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
By: Alan Rockefeller (Alan Rockefeller)
2009-02-04 19:05:46 PST (-0800)

Most of the mushrooms pictured in the photo are what I am calling Tuber oregonense, however there are some others in the background. I just added two more photos showing the specimens cut open.

By: AmatoxinApocalypse (AmatoxinApocalypse)
2009-02-03 06:27:54 PST (-0800)

What can i say Alan, beautiful as always, keep up the great work.

Love your scope shots.

A problem with the photos called T. oregonense
By: Daniel B. Wheeler (Tuberale)
2009-02-02 09:22:17 PST (-0800)

First, those micro photos of spores are REALLY nice!

Second, the photo purporting to show Tuber oregonense probably shows several other species as well. I’d guess Hymenogaster and Leucangium are included. No date given for the collection that I could find, so anything is possible.

PLEASE – when photographing a hypogeous fungi, allow at least one photo of the gleba (interior) to verify fruiting characteristics of that species. The plethora of hypogeous fungi are hard enough to sort through as it is.

If the photo was actually taken in January or later, the specimen could also be T. gibbosum (although I don’t see any pinched spores in the microphotographs).

Nice photos
By: Darvin DeShazer (darv)
2009-01-30 21:57:01 PST (-0800)

WOW – Stunning microphotographs.