Observation 146802: Onnia tomentosa (Fr.) P. Karst.

When: 2013-09-29

Collection location: Nescopeck State Park, Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Near large spruce, presumably on the spreading roots. Old specimens.

Tube layer separable from cap context. Upper cap context rubbery, lower portion fibrous/tough.

Proposed Names

58% (1)
Eye3 Eyes3
Recognized by sight
Based on chemical features: KOH on cap surface black, on pores black, on inner context vivid red then darkening eventually to black.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
According to Roody, the spore print…
By: Dave W (Dave W)
2013-10-04 09:34:04 PDT (-0700)

color for O. tomentosa should be pale yellow to pale brown. Miller writes that the spore print color for Inonotus tomentosus (which I suppose is an old name for Onnia) is whitish-buff, which aptly describes the color of the print I obtained from this collection. Size of spores for this collection matches the both Roody’s and Miller’s report.

Wondering about the discrpency in reported spore print color?

Created: 2013-09-29 20:19:33 PDT (-0700)
Last modified: 2013-09-29 20:19:39 PDT (-0700)
Viewed: 30 times, last viewed: 2017-11-10 13:36:16 PST (-0800)
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