Observation 174761: Boletus oliveisporus (Murrill) Murrill
When: 2014-08-17
No herbarium specimen

Notes: I’ve posted this one a few times in the past, but now I finally have spore measurements to go along with it.

Microscopy:
[40/2/2]; L x W = (12.6-) 13.5-17.2 (-20.0) x (3.72-) 4.2-5.1 (-5.3) um;
L’ x W’ = 15.5 × 4.5 um; Q’ = 3.45

Though I haven’t seen a spore of less than 12.6 um long and more than 5.3 um wide in perfectly lateral view, my observations are well within the range of 11-17 × 4-6 um reported for this bolete in B-R-B.

Proposed Names

85% (1)
Eye3 Eyes3
Recognized by sight
Based on microscopic features: well within the reported range (see notes)

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks, Walter
By: I. G. Safonov (IGSafonov)
2014-08-20 19:20:13 PDT (-0700)

Surprisingly, this one is exclusively associated with the pitch pine here in NJ. It’s one of the southeastern boletes that made it all the way into the Garden State. I wonder if they see it in Cape Cod. I’ve been tempted to try this beautiful bolete (when young and it has an orange brown or red-brown cap and a tri-color stipe) it many times but the intense bluing on all the surfaces as well as the context is just to much for me. ;)

Nice Igor
By: walt sturgeon (Mycowalt)
2014-08-20 19:04:28 PDT (-0700)

I don’t know this one. Under oaks?

Created: 2014-08-20 18:56:22 PDT (-0700)
Last modified: 2014-08-20 19:20:50 PDT (-0700)
Viewed: 25 times, last viewed: 2016-08-13 16:07:47 PDT (-0700)
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