Suillus species often have a viscid cap which is why they are called Slippery Jacks. They form their spores in vertical tubes under the cam instead of gills.
Trials: Griffin under Douglas Fir
Similar to Fat Jack but often with very large, broad cap; indeed the largest Suillus in California
ectomycorrhizal
Suillus ponderosus is a species of bolete fungus in the family Suillaceae.