Spore size 12.9-15.3 µm (13.7 ave) X 4.1-4.6 µm ($.4 ave)
Flesh light yellow
Size of pileus ~ 4-5 cm diam
Size of stipe – .4 – .6 cm X 4-5 cm
Cap dry and suede-like but becomes viscid on wetting
Resinous tufts of hairs at apex of stipe (not really visible in photo)
No staining (or perhaps some brown stains)
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What kind of conifers were these found under? Many Suillus species have high mycorrizal specificity with their tree “hosts”, so it can help with identification.
Have you tried to match macro & micro data of your material with any of the available descriptions of Suillus species from western USA and the Pacific Nothwest in printed/online literature?
Have you considered submitting a sample for ITS sequencing? T. D. Bruns’ research group comes to mind in light of his and Kretzer’s seminal phylogenetic study of this genus published in 1996 in Mycologia [Vol. 88(5), p.776].
Without disputing your identification claims, have you considered other genera, like Leccinum? From you photos, the stipes might be ornamented with scabers.
Created: 2013-08-10 15:31:23 PDT (-0700)
Last modified: 2013-08-10 15:31:30 PDT (-0700)
Viewed: 32 times, last viewed: 2017-07-31 08:54:40 PDT (-0700)