When: 2018-06-06

Collection location: Lick Creek Park, College Station, Brazos Co., Texas, USA [Click for map]

Who: Alexey Sergeev (asergeev)

No specimen available


It was found growing at the base of an oak.

Proposed Names

28% (1)
Recognized by sight: ID to species from pix alone is difficult

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= Observer’s choice
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Add Comment
By: I. G. Safonov (IGSafonov)
2018-06-07 20:11:18 CDT (-0500)

That’s what I thought, judging from the white dusting on the lower stipe…

The history of foliiporus is complex and confusing. Originally described by Murrill in 1943 as Gomphidius foliiporus,1 it was re-described in 1945 in exquisite detail by Singer as a subspecies of P. rhodoxanthus.2 A comparison of these two early descriptions can be attempted if you follow the links in the reference section below and have enough patience to read them. The key points are that the flesh is supposed to blue, and the basal mycelium is “yellowish white or rich yellow” (Singer). Singer raised foliiporus to the species level in 1978. A NA collection identified as P. foliiporus was shown not to be closely related to P. rhodoxanthus and was instead a very close relative of P. rubiginosus from SE Asia in Zeng et al. (2012).3
1 Mycologia 35, p. 432. http://www.cybertruffle.org.uk/cyberliber/index.htm ==> Journals ==> Mycologia ==> Vol. 35 ==> p. 432
2 Farlowia 2, p. 280-281. https://www.biodiversitylibrary.org/...
3 http://groups.kib.cas.cn/...

I think that the basal mycelium is white.
By: Alexey Sergeev (asergeev)
2018-06-07 18:16:51 CDT (-0500)
Basal mycelium
By: I. G. Safonov (IGSafonov)
2018-06-07 18:01:52 CDT (-0500)

Was it white or yellow?

Created: 2018-06-07 17:32:01 CDT (-0500)
Last modified: 2018-06-07 20:12:42 CDT (-0500)
Viewed: 53 times, last viewed: 2018-12-30 05:10:07 CST (-0600)
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