Observation 184097: Hymenogaster Vittad.
When: 2014-10-19
Who: lovenden

Notes: Found in soil of a very weedy, poor potato garden. Look like 5-10 mm, soft white balls in the upturned dirt. No nearby trees. Three 20’ tall fir and spruce live ca.30’ from the garden; >50’ tall mixed woods live 75’ from garden. Distinctive smell. We have lots of the dirt mounds made by moles, in the adjacent lawn. Spores subglobose, brown, large, not measured, I estimate about 30 microns across, with thick walls, coarse ornamentation, and a short hyaline projection from each end.

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49% (2)
Eye3 Eyes3
Recognized by sight: Large locules, with basal columella. Probably has a rank, nearly benzene-like gaseous odor. Tree hosts do not need to be “nearby”. A 150-foot pine can host Hymenogasters at least 300 feet away.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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According to NATS Field Guide To Selected North American Truffles
By: Daniel B. Wheeler (Tuberale)
2014-10-20 09:33:54 PDT (-0700)

and Truffle-like Fungi, Hymenogaster subalpinus has spores that are 20-30 × 14-16 microns, roughened, narrowly citriform with a truncate-cupped base. The spores here are at least similar.

Created: 2014-10-19 17:05:50 PDT (-0700)
Last modified: 2014-10-20 07:05:59 PDT (-0700)
Viewed: 39 times, last viewed: 2017-05-15 13:00:09 PDT (-0700)
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