Observation 29917: Tremella aurantia Schwein.

When: 2009-11-21

Collection location: Jackson Demonstration State Forest, Mendocino Co., California, USA [Click for map]

Who: Kenan (celtikman25)

No specimen available

21 Nov 2009 this was collected. This collection was parasitizing Stereum hirsutum shelves that were growing on a fallen branch. If I only had my camera in the field.. on the branch were numerous S. hirsutum shelves that were in a sequence of just T. aurantia to half-and-half to a couple asymptomatic S. hirsutum shelves.

It was a yellow translucent witches butter about the size of a quarter.

[admin – Sat Aug 14 02:07:03 +0000 2010]: Changed location name from ‘U.S.A., California, Mendocino Co., Jackson State Forest’ to ‘Jackson State Forest, Mendocino Co., California, USA

Proposed Names

78% (1)
Eye3 Eyes3
Used references: Else Vellinga sight identification, Mushrooms Demystified
Based on microscopic features: Tuning fork shaped basidia

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2009-12-08 22:31:59 PST (-0800)
Last modified: 2013-12-01 13:05:14 PST (-0800)
Viewed: 83 times, last viewed: 2017-06-06 04:51:14 PDT (-0700)
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