Observation 97446: Phylloporus arenicola A.H. Sm. & Trappe
When: 2012-06-07
Herbarium specimen reported

Notes: Gills bruise bluish green.

Proposed Names

53% (3)
Recognized by sight: Greenish tones on cap with black spots; lack of red colors anywhere.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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After revisiting my references
By: Drew Parker (mycotrope)
2012-06-18 02:07:57 CDT (-0400)

It really does look like the macro character differences between these two are murky to say the least. The hymenium of neither are supposed to blue. The colors and gill attachments are generalizations being variable and overlapping. Habitat apparently doesn’t have much meaning either. The color changes of the pileipellis with KOH may have validity, I don’t know. Without DNA maybe “promising” is the limit for the identification of many Phylloporus collections.

you know, scrolling through my old obsies today…
By: Debbie Viess (amanitarita)
2012-06-17 18:12:53 CDT (-0400)

I started thinking the same thing.

Not very clear-cut, is it?
I remember that we agreed that bluing was inconsistent or sometimes present in both species.

So, do we need to start running the DNA on these before we can really put a confident name on them?

Obviously, there is some overlap between characters that we used to think were exclusive to one species or another. So…where does that leave us?

Phylloporus sp.? Ugh.

Gilled bolete cap color
By: Christian (Christian Schwarz)
2012-06-17 17:55:23 CDT (-0400)

Cap color and especially gill attachment are not reliable ways to identify the Phylloporus we find in the west as far as I can tell.

Last week I had the chance to look three fresh specimens of Phylloporus collected near Screwdriver Creek in Shasta-Trinity National Forest:

Young specimens have velvety greenish-olive to olive-tan caps, becoming smooth and red-brown as they age. They blued fairly slowly, most visible after having been in the tackle box for multiple hours.

See observation 91897 for more discussion.

or…just a really faded cap?
By: Debbie Viess (amanitarita)
2012-06-17 17:42:47 CDT (-0400)

I can almost see some red tones there…and it’s not as “frosted” on the cap as a typical arenicola.

those gills look decurrent, not notched, to me.

tough call, but I’m leaning towards rhodoxanthus.

Created: 2012-06-15 21:17:17 CDT (-0400)
Last modified: 2012-06-18 02:08:34 CDT (-0400)
Viewed: 63 times, last viewed: 2016-10-24 15:45:09 CDT (-0400)
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