Observation 91897: Phylloporus arenicola A.H. Sm. & Trappe
When: 2012-04-04
No herbarium specimen

Notes: Near the beginning of West Road just above the North Remote parking lot. This area is one of the best places on campus to find Phylloporus, from fall through spring.

There weren’t many mycorrhizal trees visible at this spot… Douglas-fir, Tanoak, and some madrone nearby, but rather distant.

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You aren’t alone
By: Christian (Christian Schwarz)
2012-04-07 21:12:14 EDT (-0400)

The Phylloporus on the UCSC Upper Campus do not blue consistently quickly, but in my experience they all blue eventually.

When I used to work on the FERP, I would often find them on the walk home and would bruise them and then carry them down to central campus. They would usually show blue stains by the time I got to my dorm.

Looks like you’ve also experienced that: observation 92189

Also, the young, nice ones tend to be solidly olive-gray or greenish, aging to dull reddish-brown. See Ryane’s photo here observation 176595 which shows red-brown and dull olive green on the same cap. Ron’s great observation here shows a weakly staining frb observation 69044.

thanks
By: zack mikalonis (zackm)
2012-04-07 19:28:45 EDT (-0400)

thanks to both of you for clarifying. Though I must say, Debbie clarified then Christian confused me a little. Christian: If you think there is only one species in upper campus, and this specimen from upper campus is arenicola, then are all the ones I find arenicola? even if they blue…. (arenicola doesn’t blue according to michael kou)
in this observation http://mushroomobserver.org/91380?q=CzCl One of the two specimens is more red capped and one more green gray, I now assume they may have blued if i stuck around long enough to find out…..

So, to the point: what species’ are we dealing with here considering this jumble of characteristics?

arenicola vs rhodoxanthus
By: Christian (Christian Schwarz)
2012-04-06 10:59:18 EDT (-0400)

A couple things – yeah, the frosted green cap that Debbie mentioned is the clearest first thing.

Other things: on the UCSC Upper Campus I have seen green-capped ones turn reddish brown, and non-blueing ones slowly blue.

My guess is that we only have one Phylloporus on the UCSC Upper Campus, maybe broader Santa Cruz area in general.

No Phylloporus I’ve seen in CA is anywhere near as red as the Eastern species:
observation 91901

arenicola is distinctive, even from this photo…
By: Debbie Viess (amanitarita)
2012-04-06 10:43:02 EDT (-0400)

frosted greenish brown rather than reddish cap and notched rather than decurrent gills.

I remember back about ten years ago when one of these was an amazing new find, at an old SOMA camp that I actually attended…IDed by Henry Young. Now, it seems we are seeing them everywhere. Or maybe just finally recognizing them.

Now, you can, too.

why arenicola?
By: zack mikalonis (zackm)
2012-04-06 04:04:05 EDT (-0400)

What led you to arenicola rather than rhodoxanthus, was it the lack of bruising? I have been finding many recently. At first I thought they weren’t bluing because the reaction wasn’t happening with the same speed as in the fall, but two days ago i found some above ano neuvo, I marked them to try and cause a bluing reaction, so no reaction, and walked on. I passed by the same piece of trail a little over an hour later and mild bluing had occuring where they had been handled and marked…

Created: 2012-04-06 01:39:46 EDT (-0400)
Last modified: 2012-04-06 01:39:46 EDT (-0400)
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