Observation 23223: Tuber P. Micheli ex F.H. Wigg.

When: 2009-07-15

Collection location: Larch Mountain, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Identification suggested by Dr. Michael Castellano, who actually found the sporocarp shown. He also suggested it might be a Macowanites, but I see no stipe or columella present, which usually is present in Macowanites.

[admin – Sat Aug 14 02:02:09 +0000 2010]: Changed location name from ‘Larch Mtn., Multnomah Co., OR’ to ‘Larch Mountain, Multnomah Co., Oregon, USA

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Not so sure…
By: Daniel B. Wheeler (Tuberale)
2009-07-17 04:19:25 CEST (+0200)

Tuber should have venae externae (external veins). The closest thing to that here that I can see is a mid-line canal through the entire sporocarp. In addition, there appears to be small holes on the right-hand side. Caz said he thought it might also be a Macowanites. But Macowanites would have a distinctive cap area, which is also lacking to my eye on this specimen. Without an interior, it’s impossible to say anything further. But I’d suggest this is more likely a very immature Gymnomyces, possibly G. brunnescens. In Latin, brunnescens means “becoming brown” or “bruising brown” which, does seem to match the peridium here, at least.

Created: 2009-07-16 01:16:37 CEST (+0200)
Last modified: 2011-04-25 19:58:31 CEST (+0200)
Viewed: 50 times, last viewed: 2017-06-06 07:42:47 CEST (+0200)
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