Hey Dave, good catch. Don’t know why I said white spored. I will chalk it up to extreme fatigue, but it is more likely due to pervasive ignorance. All of the taxa we’re considering have some flavor of brownish/pigmented spores.
The important bit is this: there are multiple interpretations of Flammulaster/Phaeomarasmius, and I assign granular-looking mushrooms to the former, fibrillose ones to the latter.
From MycoKey/Funga Nordica:
“Chains of globose cells in the epicutis match Flammulaster sensu Vellinga but this is not a delimiting character in Horak’s system.”
Like any good Californian, I follow Vellinga. Maybe that should be a bumper sticker.