Observation 154739: Russula sanguinaria (Schumach.) Rauschert

When: 2013-11-15

Collection location: Oakland Zoo, Oakland, California, USA [Click for map]

57.75° -122.149°

Who: crumblyeggroll

No specimen available

I found these growing underneath a pine tree along with some Lactarius deliciosus. I tasted the cap and it was bitter. Under the microscope, spores were white and slightly ornamented. In Meltzer’s Reagent the spores stained blue (amyloid).


Note the slightly blue staining in the ornamentation of the spore. Taken in Brightfield with a 100X objective w/ oil. Sample in Meltzer’s Reagent.

Proposed Names

76% (1)
Eye3 Eyes3
Recognized by sight: Red cap with reddish stipe. Also tasted bitter.
Based on microscopic features: Round ornamented spores
Based on chemical features: Spores were amyloid in Meltzer’s Reagent

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2013-12-09 16:06:37 PST (-0800)
Last modified: 2013-12-09 16:06:43 PST (-0800)
Viewed: 16 times, last viewed: 2018-07-15 13:30:03 PDT (-0700)
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