Observation 9866: Inonotus P. Karst.

When: 2008-08-22

Collection location: Altadena, California, USA [Click for map]

Who: revets2

Specimen available

This is growing on the side of a dead Siberean Elm tree in the middle of summer. It appeared in late July 2008.


Copyright © 2008 Jim
Copyright © 2008 Jim
Copyright © 2008 Jim
Copyright © 2008 Jim
Copyright © 2008 Jim
Picture of spores taken by pellaea reference in post. Thanks!

Proposed Names

84% (1)
Recognized by sight: Spore print bright ochre; cap surface densely tomentose; annual; flesh dark brown; quite spongy where actively growing but turning hard and corky when mature; pore surface brown; pores fine (~2 per mm).
Used references: Arora’s Mushrooms Demystified
Based on microscopic features: spores smooth, yellow-brown, ellip, 6.4-7.2 × 4.3-5.8 µm (too small to be I. hispidus)
Based on chemical features: K+ black flesh, K+ deep red on fresh cap surface

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2008-08-22 18:47:09 PDT (-0700)
Last modified: 2008-08-23 12:38:32 PDT (-0700)
Viewed: 92 times, last viewed: 2017-10-06 14:45:42 PDT (-0700)