Observation 159463: Volvariella Speg.

When: 2014-02-04

Collection location: Waikiki Beach, Oahu, Hawaii, USA [Click for map]

Who: Debbie Viess (amanitarita)

No specimen available

Photographed by Will Semmes near a banyan tree in a small park next to Waikiki beach on Oahu.
Photo here with permission. Duff also indicates Ironwood nearby (pine like needles): Casuarina sp..

Species Lists


Waikiki banyan bluish fungi.jpg
Waikiki banyan bluish fungi gills.jpg

Proposed Names

20% (2)
Recognized by sight: although there are Pluteus sp. that blue at the base, this is the first that I have seen with a blue cap!
44% (2)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
comment by observer:
By: Debbie Viess (amanitarita)
2014-02-10 13:30:24 EST (-0500)

Hi Debbie, yes, it was blue to my eye, but the flash really set it off – I guess there was some iridescence involved. It was more of a violet at the center of the cap, radiating out (mycena-like) towards blue, probably about 1/3 of the cap (visually). You are right about the ironwood, it was all over that park. Thanks for posting it. Best, Will

the observer also saw a blue centered cap in the field…
By: Debbie Viess (amanitarita)
2014-02-10 13:08:30 EST (-0500)

but it was intensified by the camera flash.

That is a rather bright blue color, centered on the cap, not a general wash of color from, say, adjacent sky colors.

I am not convinced that it is an artifact of light.

Sure wish that Will had collected it though.

not blue…
By: Richard Kneal (bloodworm)
2014-02-10 12:54:38 EST (-0500)

look at the sky in the second photo.
it is the lighting.

volvariella is another possibility
By: Debbie Viess (amanitarita)
2014-02-10 12:52:19 EST (-0500)

but sadly, the finder didn’t dig this up. It might be on buried wood/or not. the cap might’ve been viscid, what with that stuck debris. no sign of a volva that I can see. the rest of it could fit either species.

I don’t know of any blue capped Volvariellas either…do you?

Still…wish that I’d have found it! Love those blue shrooms.

By: Byrain
2014-02-10 12:09:20 EST (-0500)

I will delete the name and retract my votes. :)

By: Debbie Viess (amanitarita)
2014-02-10 12:04:49 EST (-0500)

you are too fast for me, Byrain! I clicked on the wrong images, had them up for maybe a minute, and you were ON IT!

Your ID guess of Coprinellus was correct, BTW.

By: Byrain
2014-02-10 12:01:51 EST (-0500)

The images vanished as I was proposing the name…