I have never seen/noticed a yellow-edged annulus in this sp. Doesn’t mean that it sometimes doesn’t occur. The annulus in aprica is fairly ephemeral and easily lost. The YFS photo that you linked to doesn’t show a yellow annulus but merely colored UV remnants at the stipe base.

Still, the aprica photos on the Tulloss site do show it.

also this one may:
http://mushroomobserver.org/85365?q=DaFi
and this one:
http://mushroomobserver.org/8112?q=DaFi
also these ones might:
http://www.amanitaceae.org/?Amanita_aprica

could it be a relatively common feature of this species or is there just general confusion around this species (i vaguely remember some lengthy arguments last year on MO)?
I’m not trying to question anyones identifications, I’m just curious about this pattern
:)

These also had the yellow edged annulus, also thought to be aprica by christian.
http://mushroomobserver.org/93626?q=DaYw
Is this feature characteristic of another species? what else could they be?
cheers

is about 3100 feet.

but I have never seen a yellow edged annulus on this species.

but an interesting location for it!

what is the elevation for your Rose Valley?