Observation 86433: Fulvifomes robiniae (Murrill) Murrill

When: 2011-12-28

Collection location: Vienna, Virginia, USA [Click for map]

38.53° 77.14°

Who: Penny Firth (pfirth)

No specimen available

Fruiting about 3 meters up a hardwood tree in former farmland, open area now.

Proposed Names

56% (1)
Recognized by sight: Great. I am glad that worked out. Phellinus rimosus it is!

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Phellinus robiniae
By: Patrick R. Leacock (MycoGuide)
2012-06-25 16:08:40 PDT (-0700)

Phellinus robiniae is the name to use for this taxon on locust trees. Phellinus rimosus is a similar Old World species (Europe, Africa, Asia).

Great call Martin…
By: Penny Firth (pfirth)
2012-01-19 09:57:04 PST (-0800)

I looked at the uncropped image and it was indeed a black locust tree. Some of the other images on MO have more of a creamy pore surface like this one.


By: Martin Livezey (MLivezey)
2012-01-17 10:01:02 PST (-0800)

You might want to check out some examples of Phellinus rimosus on MO


They are very conspicuous this time of the year; they only grown on black locust. I can’t tell if yours in growing on black locust or not. As you will see, all of mine have a brown pore surface, so it may not apply to what you photographed.

This conk was pretty large -
By: Penny Firth (pfirth)
2012-01-17 07:50:50 PST (-0800)

estimate about 20 cm across.

Created: 2012-01-16 16:31:49 PST (-0800)
Last modified: 2015-02-22 11:41:24 PST (-0800)
Viewed: 198 times, last viewed: 2017-06-10 05:50:24 PDT (-0700)
Show Log