Observation 128359: Gymnopilus aeruginosus-luteofolius clade sensu Guzmán-Dávalos

When: 2013-02-02

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

21.0° -158.0° 55m

Who: Allen Hoof (allenhoof)

No specimen available

Description: Three brownish mushrooms, in appearance evocative of, and in size only slightly larger than, bottle caps.

Habitat: Mixed native and alien lower elevation tropical montane forest. Per “Atlas of Hawaii,” this location is in ‘lowland dry and mesic woodland.’

Spotted along Kealia Trail between the third and fourth switchbacks. Of the three images, the first is an overview showing three individuals, the second is zoomed in on the two individuals on the left of image one and the third is an attempt to capture a macro view of the underside of the upper left individual in image one. Another observer, in another forum, commented “[they] have a slightly scaly cap and appear to be dropping rusty brown spores on the veil remnants.”

Proposed Names

36% (5)
Recognized by sight
-42% (3)
Recognized by sight: Dark brownish-purplish squamulose cap with scalloped margin

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Alan, not Allen…
By: Richard Kneal (bloodworm)
2013-02-15 14:11:46 PST (-0800)

i’m not disagreeing with your suggestion.
however, if we are going to start putting Gymnopilus into clades, which I am very much against…
two things must be done…
1. someone needs to make the “A” in “Aeruginosus” lower case (it is driving me nuts).
2. a lot of renaming of previous MO observations…

allen, not Alan
By: Danny Newman (myxomop)
2013-02-13 23:56:55 PST (-0800)

I was referring to G. hawaiiensis

It’s a clade
By: Alan Rockefeller (Alan Rockefeller)
2013-02-13 23:40:54 PST (-0800)

Not just a single name.

It was published in the paper “Traditional infrageneric classification of Gymnopilus is not supported by ribosomal DNA sequence data”

By: Danny Newman (myxomop)
2013-02-13 23:14:15 PST (-0800)

that name doesn’t exist.

By: Richard Kneal (bloodworm)
2013-02-13 17:22:09 PST (-0800)

as noted by Danny…
the presence of purple does not indicate an active species, necessarily…
at the same time, blue/green staining would.

did you notice…
By: Richard Kneal (bloodworm)
2013-02-13 17:19:24 PST (-0800)

any blue/green coloration on the stipe and/or pileus??
from the pictures, they appear to be psilocybin active, imo.

Significance of purple
By: Allen Hoof (allenhoof)
2013-02-13 17:16:17 PST (-0800)

First, disclaimer: the observer was actually my daughter, the botanist. I was just the cameraman.

Second, I’ve uploaded a fourth image: nothing new, but zoomed in to actual pixels on the upper left individual. If there is purple there, it’s very faint, around the rim of the cap. I also note a purplish spot on the upper left center of the cap. However, the main purpose of this comment is to remark that as someone with very few credentials in anything, and none in mycology, I am unsure of the significance of purple coloration. Is it suggestive of the presence of a hallucinogen?

By: Richard Kneal (bloodworm)
2013-02-13 15:52:11 PST (-0800)

however, imo…
these are clearly active.
the stipe and pileus surface have a blue/green tint to them…
the coloration reminded me of cultivated G. aeruginosus, but the stipe doesn’t match…
its cleary an undescribed species…

By: Danny Newman (myxomop)
2013-02-13 15:44:24 PST (-0800)

That all (or almost all) active Gymnopilus have some purple to them, or that those that are purple are also active, does not necessarily make the purple a factor of their psychoactivity. Correlation ≠ causation. That’s what I’m getting at.

By: Richard Kneal (bloodworm)
2013-02-13 15:36:20 PST (-0800)

in response to your edited comment…
if you consider all of the “purple” Gymnopilus species…
almost all of them are active.

By: Richard Kneal (bloodworm)
2013-02-13 15:26:58 PST (-0800)

this is too large for G. pacificus and not the right coloration.
Hesler describes this species as 12-18mm broad with an incurved margin.
the stipe is 1.5-2 cm long and is yellowish.

at least one other sp. reported from Hawaii
By: Danny Newman (myxomop)
2013-02-13 15:18:09 PST (-0800)

G. pacificus. Mentioned in Hesler’s monograph, referenced in Mycotaxon 54: 118, 120. 1995 and cited as “Bessey 722” in Mycotaxon 59: 64. 1996. (see: http://quod.lib.umich.edu/...). No descriptions available on the web, it seems. Do you have the Hesler text, Richard?

re: color

But is the purple in purple Gymnopili the result of oxidizing psilocybin or some anthocyanin? that this color is present from primordia in some Gymnopilus spp., active or inactive, says to me it’s an inherent pigment. a color change upon bruising is another story.

By: Richard Kneal (bloodworm)
2013-02-13 15:11:30 PST (-0800)

G. luteofolius is active.

blue bruising
By: Danny Newman (myxomop)
2013-02-13 15:04:48 PST (-0800)

or just purple, as in G. luteofolius and others. hard to tell here…

Gymnopilus subtropicus…
By: Richard Kneal (bloodworm)
2013-02-13 14:49:06 PST (-0800)

i thought the same thing for a minute when i saw this post…
however, this species appears to have blue bruising on the stipe and pileus.
G. subtropicus is not active…
this species appears to be.

By: Allen Hoof (allenhoof)
2013-02-13 14:43:45 PST (-0800)

Should I see this species—or what appears to be this species—in future, I shall collect a specimen.

Gymnopilus sp. in Hawaii
By: Allen Hoof (allenhoof)
2013-02-13 14:39:26 PST (-0800)

“Mushrooms of Hawaii” (Hemmes and Desjardin) lists only one species of Gymnopilus, viz., G. subtropicus. Both its description “distinctly orange” and appearance in pictures in the book are noticeably different from this observation. In addition, the range of G. subtropicus is limited to Hawaii Island. The authors state that the reference is not encyclopedic; it lists “the more common mushrooms” found in Hawaii, so the absence of another Gymnopilus in the book does not suggest that this observation is not Gymnopilus. What it does suggest is that it is not G. subtropicus.

By: Richard Kneal (bloodworm)
2013-02-13 14:23:40 PST (-0800)

if you happen to see them again…
will you be so kind??


By: Allen Hoof (allenhoof)
2013-02-13 14:22:07 PST (-0800)

I did not recover a specimen concurrent with this observation.

dried specimen…
By: Richard Kneal (bloodworm)
2013-02-13 14:10:45 PST (-0800)

do you have one??
great observation.

Created: 2013-02-11 14:05:19 PST (-0800)
Last modified: 2013-02-19 15:03:56 PST (-0800)
Viewed: 583 times, last viewed: 2018-03-08 18:17:26 PST (-0800)
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