Another G. vittaeformis for you, although this one with smaller spores than before in other's I've seen, making these G. vittaeformis var. vittaeformis f. tetraspora. I don't know, Smith and Singer make this whole thing out of 2-spored and 4-spored basidia, but really if there is nothing else to split the species, are these really split species? Well, they're published, and I'm not, so go with it.