These all come from an area where mature Norway spruce and pine (Scotch or Virginia, not sure) occupy planted rows/plots bordering native forest. There is hemlock in the native forest. But these mushrooms all seem to be associated with spruce/pine, none observed where hemlock was present in the native forest. A collection previously made in this same location had spores with significant percentage verging on broadly ellipsoid, obs 277980. So, this got me wondering about whether these may be other than praecox.