Observation 46716: Ripartites tricholoma (Alb. & Schwein.) P. Karst.

When: 2010-06-07

Collection location: Bassetts, Sierra Co., California, USA [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under mixed conifer forest. Found at the Wild Plum campground, Sierra City.

These are different than when I found these before in the area. First time I saw them (also obs. here at the site…), the cap surface was fairly fibrous, with fibers over hanging the margins. This one here has a pretty much glabrous pileus. But we put a gill quickly under the scope, and confirmed the spores for the species here.

These look a lot like the Ripartites metrodii I saw in Geneva, I think it was mentioned that these species are perhaps synonymous.

This time I saw that the mycelium a the base was rather pinkish, and with rhizomes.

Only the third time these have been obs. in the history of the course.

Proposed Names

86% (1)
Eye3 Eyes3
Recognized by sight
Based on microscopic features: Small spiny tear-shaped spores.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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I would have liked to see
By: Irene Andersson (irenea)
2010-06-12 08:52:54 PDT (-0700)

a DNA-comparison between the Ripartites species/forms. I don’t think anything has been done with this genus yet, and I suspect that it has something to do with confusion around the forms metrodii and helomorphus.

Created: 2010-06-12 08:28:47 PDT (-0700)
Last modified: 2010-06-12 08:28:50 PDT (-0700)
Viewed: 66 times, last viewed: 2018-04-14 03:23:25 PDT (-0700)
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