Observation 218512: Polyporales sensu lato
When: 2015-10-11
Who: zaca
No herbarium specimen

Notes: Growing on wood of a non identified tree.
Context very hard, cork-like.


Transversal cut;
Reaction to KOH (25%).
Microscopy: Hyphae from hymenium-1;
Microscopy: Hyphae from hymenium-2;
Microscopy: Hyphae from hymenium-3;
Microscopy: Pileipellis – Hyphae similar to those of hymenium.

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then perhaps not.
By: Danny Newman (myxomop)
2015-10-13 01:12:16 CDT (-0400)

that makes this a job for a polyporologist, of which we have a severe shortage on MO. Gerardo Robledo, Elisando Ricardo Drechsler-Santos and Leif Ryvarden are my most trusted authorities on these fungi.

I will try, but
By: zaca
2015-10-12 13:02:29 CDT (-0400)

as the the 4th photo shows the hymenium didn’t black with the application of KOH; No trace of any setae or alike in any tissue observed.

By: Danny Newman (myxomop)
2015-10-12 12:58:02 CDT (-0400)

the family is defined by having a xanthochroic (darkening/blackening) reaction on all tissues with the application of KOH, and the presence of large setae in the hymenium. there are, however, setae-less members of such genera as Phellinus. I would look again for spores, basidia, and setae in a mount of one of the pores.

Microscopy added; Danny, is there …
By: zaca
2015-10-12 12:30:30 CDT (-0400)

any feature from Hymenochaetaceae in the photos from microscopy?

Created: 2015-10-11 18:51:47 CDT (-0400)
Last modified: 2015-10-12 13:20:17 CDT (-0400)
Viewed: 48 times, last viewed: 2017-06-21 00:03:18 CDT (-0400)
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