When: 2011-08-15

Collection location: The New York Botanical Garden, Bronx, New York, USA [Click for map]

Who: Roy Halling (royh)

Specimen available

Species Lists


On lawn under oak.

Proposed Names

56% (1)
Recognized by sight: Broad coarse reticulum on white stipe. Dry subtomentose pileus. This is B. tenax ss Smith & Thiers in Boletes of Michigan, non Bolton, non Lightfoot. In the sense of the latter two as noted by Index Fungorum (not verified by me), the latter concepts are attributable to Laetiporus sulphureus.
84% (1)
Recognized by sight

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Add Comment
Easiest to see is that the
By: Roy Halling (royh)
2011-08-16 16:19:43 CDT (-0400)

context is pale yellow in illudens, white in tenax. Also the stipe colors are yellow in illudens and whitish in tenax. Differentiated in Bessette et al. (compared in the commentaries), photographs show the differences as well. Also the differences can be compared if you read the descriptions in Smith & Thiers (online at Univ Michigan).

By: I. G. Safonov (IGSafonov)
2011-08-16 15:30:21 CDT (-0400)

How can one differentiate macroscopically between B. tenax and B. illudens?

By: Roy Halling (royh)
2011-08-16 11:37:15 CDT (-0400)

I’m thinking not so rare, but widely distributed here in the EUSA. The taxon grows here at NYBG in the same place, but doesn’t show up every year.

nice find.
By: Debbie Viess (amanitarita)
2011-08-15 19:46:20 CDT (-0400)

and so close to work! ;)

Is this mushroom fairly rare? Its reticulum is certainly distinctive.