Observation 23839: Tuber gibbosum Harkn.
When: 2009-08-01
No herbarium specimen

Notes: What to do with excess Tuber gibbosum riches? Try slicing them thinly and drying them for later use. That what these were, on Devilled Eggs. Today was a potluck for the Clackamas County Farm Forestry Association, which last year awarded Paul Bishop Sr. its coveted Tree Farmer of the Year award. For those who don’t already know, Clackamas County (county seat: Oregon City) annually produces more Christmas trees than 45 other states. I met Paul Bishop Sr. 33 years ago during a forage to his tree farm held by the North American Truffling Society. It was here that I started finding these very dark Tubers, especially when dried, which typically fruit during the spring. Dr. James Trappe finally compared my collections with the remaining potion of the original collection of Tuber gibbosum Hark. and announced with some surprise that the original collected material from California in March, April, and June also fruits in Oregon. He further stated that under a scanning electron microscope, Tuber gibbosum has pinched spores, while the material incorrectly identified for some 30 years as Tuber gibbosum, now renamed as Tuber oregonense, has plump spores. Ergo the changing of names.

[admin – Sat Aug 14 02:04:29 +0000 2010]: Changed location name from ‘Paul Bishop’s Jones Creek Tree Farm, Clackamas Co., OR’ to ‘Paul Bishop’s Jones Creek Tree Farm, Beavercreek, Oregon, USA’

Species Lists


Rehydrated Tuber gibbosum on Devilled Eggs. Sliced material was dehydrated, and kept in a zip-lock bag frozen for the past 5 years.
Close-up of Tuber gibbosum on Devilled Egg. Julia Child would have been in heaven.
Paul Bishop Sr. (on the right) framed by the doorway of his home. After finding my first mature Tuber oregonense on Paul’s farm in 1986, I asked for permission to use his Christmas tree plantation to innoculate with Oregon White truffles (Tuber oregonense). He agreed, starting a 32-year relat...

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Created: 2009-08-01 20:54:41 PDT (-0700)
Last modified: 2011-04-25 10:43:37 PDT (-0700)
Viewed: 201 times, last viewed: 2016-10-27 16:22:34 PDT (-0700)
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