Observation 6011: Hebeloma sinapizans (Fr.) Sacc.
When: 2008-01-12
No herbarium specimen

Notes: Apex of the stipe shows the cone projecting down from the cap into the hollow stipe.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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By: Nathan Wilson (nathan)
2008-01-12 23:36:05 EST (-0500)

At the Santa Cruz fair today I saw a red-brown Hebeloma similar to what Darvin has called H. sinapizans in other observations. I cut it and there was the cone. I meant to hang onto the collection and take some photos, but I forgot to bring it with me and I suspect it is now gone.

A puzzle
By: Darvin DeShazer (darv)
2008-01-12 23:32:43 EST (-0500)

Wow – I said to myself “poison pie” as I collected it, but when it was cut, changed that opinion to H. sinapizans because of the cone. I should have brought it home for a closer scrutiny! So, it looks like both species have the cone.

A puzzle
By: Michael Wood (mykoweb)
2008-01-12 23:00:40 EST (-0500)

It’s very interesting that you post this today. I was just looking at a fresh collection of East Bay Hebeloma this morning. Macroscopically I thought “Hebeloma crustuliniforme” group. After cutting the the mushroom longitudinally, it had the same projecting cone as in your picture…so I thought “maybe H. sinapizans”. After scoping the mushroom, I find non-dextrinoid spores. Jan Vesterholt, in “The Genus Hebeloma” says that H. sinapizans has dextrinoid spores, H. crustuliniforme has non-dextrinoid spores. That seems to leave out H. sinapizans…and the cheilocystidia are not ventricose like description of H. sinapizans in the Vesterholt book. I’m puzzled…maybe this isn’t a good character for H. sinapizans…the specimen is sitting next to my scope for further work, which I did not have time to do today. Further study is needed!

Created: 2008-01-12 22:34:27 EST (-0500)
Last modified: 2008-01-12 22:34:27 EST (-0500)
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