Observation 34509: Amanita novinupta Tulloss & J. Lindgr.
When: 2010-02-17
No herbarium specimen

Notes: I’m not sure what species of Amanita this is. Maybe you can help? It was fruiting in mixed woods — douglas fir, oak, manzanita. Pileus 7.4cm, gills were attached and slightly decurrent. According to my notes the stipe was creamy white at the apex with minute scales above the annulus. The base developed those rusty red stains when handled. I originally thought it might be A. pantherina but the indistinct base seems to suggest otherwise. Then I thought it might be A. gemmata but there’s no mention of the sordid bruising.

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Comments

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odds are it’s just an odd novinupta…
By: Debbie Viess (amanitarita)
2010-03-06 18:00:38 CST (-0600)

but to be absolutely certain you should try and collect some more!

any amanita can show striations at the cap edge, if the cap is starting to collapse or it was thinner than normal. the red staining and the bulbous base also suggest novinupta. it normally stains red slowly not rapidly…did you keep it overnight? the yellowish color on the cap that you depicted is unusual, but we do see yellow staining on older amanitas, altho mostly in section lepidella.

I’d say that it is a probable novinupta that doesn’t fit neatly.

Perhaps…
By: Debbie Drechsler (debdrex)
2010-03-06 16:44:14 CST (-0600)

…but at Mykoweb the description states that A. novinupta has a non-striate cap, which this mushroom didn’t. Also the cap didn’t bruise red as the stipe did.

Created: 2010-03-04 22:11:27 CST (-0600)
Last modified: 2010-03-04 22:11:27 CST (-0600)
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