Observation 198263: Amauroderma Murrill
When: 2014-12-31
No herbarium specimen
0 Sequences

Proposed Names

46% (3)
Recognized by sight
67% (3)
Eye3 Eyes3
Recognized by sight
-20% (3)
Recognized by sight: Light flesh, tubes concolorous with the context. Laccate cap.
-46% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Susanne Sourell (suse)
2015-03-09 15:31:52 CST (-0600)

Unfortunately I do not know.

By: Erlon (Herbert Baker)
2015-03-09 15:16:43 CST (-0600)

Did the context remain white, or did it become slightly darker in age?

Several Amauroderma have a white context
By: Susanne Sourell (suse)
2015-03-09 14:50:51 CST (-0600)

…and looking at a quite old specimen I think that the pore surface should be more reddish brown with A. sprucei. But maybe I am wrong. Check out also the different Ganodermatacae from Cristalino on MO. Their diversity is amazing and confusing.

By: Erlon (Herbert Baker)
2015-03-09 13:52:05 CST (-0600)

I think Gerardo provided some good info. My question is, why vote ‘doubtful’ as opposed to ‘could be’?

ID by macroscopic details seems impossible…
By: Susanne Sourell (suse)
2015-03-09 12:45:16 CST (-0600)

Just a side note: According to the checklist of the aphyllophoraceous fungi (Agaricomycetes) of the Brazilian Amazonia from 2009 ( http://www.mycotaxon.com/... ) there are 16 Amauroderma species in the Brazilian Amazon and just two in the genus Haddowia (H. longipes and H.neurospora). I am sure that the list has been growing since 2009. The Cristalino area seems to be a hotspot for Amauroderma diversity, reflected by the different observations on Mushroom Observer :-)

ID by macroscopic details seems impossible or the question is: anyone having some experience from the field to share?

White context
By: Gerardo (robledo)
2015-03-08 21:10:13 CST (-0600)

Amauroderma by shure
Few.. very few things have that white context….
one of these is Amauroderma sprucei, described originally from Brazil…
spore size an dextrinoid reaction of skeletobinding hyphae to confirm

Fair enough,
By: MSchink
2015-03-08 08:12:42 CST (-0600)

I still don’t see any mention of a laccate cap surface in the descriptions Steyeart made when he described the Genus Humphreya, most species are mentioned having a velvet surface.

I am going off from what I have read in Steyaert RL. (1972). “Species of Ganoderma and related genera mainly of the Bogor and Leiden Herbaria”, as I don’t find much more information about Amauroderma, Haddowia, or Humphreya anywhere else. There is a bit of literature I have found about Amauroderma but the others… I have found nothing.

By: Danny Newman (myxomop)
2015-03-07 22:16:46 CST (-0600)

More than one specialist in Neotropical polypores has informed me that Haddowia, Humphreya and Amauroderma are only differentiable by spore morphology, not macroscopically.

Created: 2015-02-07 16:12:06 CST (-0600)
Last modified: 2015-03-09 13:49:39 CST (-0600)
Viewed: 143 times, last viewed: 2017-07-27 01:55:08 CDT (-0500)
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