Observation 110698: Royoporus badius (Pers.) A.B. De

When: 2011-11-18

Collection location: Forest 44 Conservation Area, Saint Louis Co., Missouri, USA [Click for map]

Who: weed lady (Sylvia )

No specimen available

Proposed Names

68% (4)
Eye3 Eyes3
Used references: Missouri’s Wild Mushrooms by Maxine Stone

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Thanks Irene and Walt.
By: Dave W (Dave W)
2012-12-12 11:29:02 CST (-0600)

Actually, I had thought this may be an old specimen of badius. I believe there has been some disagreement (at least within the NA field guides) regarding the names of these thin hard-fleshed polypores with the black stipe base. The “blunt cap margin” for P. leptocephalus seems like a good piece of info.

Late season picture
By: walt sturgeon (Mycowalt)
2012-12-12 11:05:09 CST (-0600)

That’s how R. badius looks in old age. Polyporus leptocephalus is seldom around late. It is usually much smaller and fruits on twigs and small limbs. R. badius fruits on logs and stumps.

By: Irene Andersson (irenea)
2012-12-12 10:56:32 CST (-0600)

Polyporus badius has a thin cap margin and smooth, shiny cap surface, and hyphae with clamps.
P. leptocephalus has a blunt cap margin and rough cap surface, no clamps. It has several synonyms (and it probably consists of several different species..).

I just chcked the MO profile for…
By: Dave W (Dave W)
2012-12-12 08:22:57 CST (-0600)

P. leptocephalus. Amongst the multitude of synonyms, I did not see P. badius. So I’m wondering, is P. leptocephalus a synonym for P. badius? And if not, then how dos one tell these two types apart?

Created: 2012-09-21 07:29:56 CDT (-0500)
Last modified: 2012-12-12 11:01:52 CST (-0600)
Viewed: 98 times, last viewed: 2018-03-02 07:21:27 CST (-0600)
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