Observation 177306: Suillus bovinus (L.) Roussel
When: 2014-09-06

Notes: Hemlock and White Pine.

Closest thing I have found is S. bovinus.

KOH: cap burgandy, cap context dark purplish brown, pores dark brown darkening to black, stipe surface dark vinaceous brown (burgandy) darkening, stipe context burgandy.

Ammonia: cap grayish, cap context blue/green-gray fading to reddish brown, pores brown, stipe surface negative, stipe context blue-gray fading to dull orange.

Young pores are grayish-green.

Proposed Names

43% (3)
Eye3
Recognized by sight
Based on microscopic features: See notes.
44% (2)
Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Thanks, Walt.
By: Dave W (Dave W)
2014-11-16 10:35:57 CST (-0500)

Looking back through the description of S. bovinus in BRB, these do seem to fit very well. One difference from the BRB description is that the tubes are not decurrent in this collection. The book calls S. bovinus a rare species, and suggests that this species was introduced into NA as an associate with Scots Pine. Interestingly, the ones seen here were found in a forest of native tree species. Hemlock and White Pine are the only conifers I have observed in this area… although there is an area with planted trees (possibly some other types of conifers) maybe 50 yards or so away.

I hope I saved some of these…

Created: 2014-09-07 23:29:51 CDT (-0400)
Last modified: 2014-11-15 22:34:50 CST (-0500)
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