Observation 117295: Suillus caerulescens A.H. Sm. & Thiers

When: 2012-11-19

Collection location: Stafford, Clackamas Co., Oregon, USA [Click for map]

Who: Joe Cohen (Joseph D. Cohen)

No specimen available

In grass, within 10 feet of Douglas fir. Cap viscid. Pore surface bruises brown. Pores slightly larger than 1 mm radially, slight narrower circumferentially. Lower part of stem stains blue-green (not deep) when cut. Upper part of stem does not bruise when handled. Photos taken on a very wet day, so cap color may not be typical. Taste not distinct, perhaps a trifle bitter.
Is this Suillus caerulescens or Suillus lakei?


Pink thing is a ruler.
Includes partial pore print

Proposed Names

28% (1)
Eye3 Eyes3
Used references: Scates, Gibson & Bishop, Trial field key to the BOLETES in the Pacific Northwest (rev. 2011); Arora, Mushrooms Demystified (2d ed. 1986)

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I don’t know what I was thinking
By: Nhu Nguyen (xerantheum)
2013-10-19 01:30:33 EDT (-0400)

This is definitely not S. pungens. I’d say that it’s S. caerulescens because the veil is dry and it occurs with Doug fir.

S. pungens?
By: Joe Cohen (Joseph D. Cohen)
2013-10-18 23:57:54 EDT (-0400)

From my limited knowledge, I don’t think this is S. pungens. That species does not appear in Pacific Northwest-specific guidebooks or keys. See Scates, Gibson & Bishop, Trial field key to the BOLETES in the Pacific Northwest (rev. 2011); Trudell & Ammirati, Mushrooms of the Pacific Northwest (2009).
And according to Arora, Mushrooms Demystified (2d ed. 1986), S. pungens is associated with Monterey pines. And Arora does not mention stem staining for S. pungens.
But this is a residential area with some non-native trees, and there are some Shore (2-needle) Pines about 50 feet away on the other side of an asphalt driveway.

Suillus in the grass
By: Nhu Nguyen (xerantheum)
2012-11-19 20:42:21 EST (-0500)

is perhaps Suillus pungens?

Created: 2012-11-19 19:07:00 EST (-0500)
Last modified: 2012-11-19 19:07:02 EST (-0500)
Viewed: 36 times, last viewed: 2017-06-14 11:28:14 EDT (-0400)
Show Log