Observation 194011: Chlorophyllum brunneum (Farl. & Burt) Vellinga
When: 2014-12-18
Who: BakerSt10
No herbarium specimen
0 Sequences

Proposed Names

15% (3)
Recognized by sight: shaggier scales over cap
5% (3)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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too bad no one dug up and shot them.
By: Debbie Viess (amanitarita)
2014-12-21 08:58:58 MST (-0700)

ambiguous characters make this a tough ID. We need annulus details and cap to stipe ratios to swing the vote.

I just spoke to Else last night, and she claims that olivieri does occur in the East Bay. They are also much more likely to be found in natural conditions with tree litter, vs. compost enriched soils/gardens/orchards, etc.

My earlier link has a very nice comparison chart for all three species.

I did not take photos
By: Alan Rockefeller (Alan Rockefeller)
2014-12-21 01:38:21 MST (-0700)

But the bulb was extremely abruptly marginate, with a large, sharp and well defined ledge. They were also unusually large.

did you take photos Alan?
By: Debbie Viess (amanitarita)
2014-12-20 18:49:26 MST (-0700)

in the descriptions that I linked to (and even in some of your own photos of this sp. Christian) both species are described with abrupt bulbs. It is more a matter of degree … so show us what YOU saw, Alan, and we’ll have to decide where to go with the weight of evidence!

I’m still hoping that someone on MO collected these.

By: Christian (Christian Schwarz)
2014-12-20 18:31:36 MST (-0700)

The cap to me looks outside the range of variation for what I’d call C. brunneum – however if as Alan says the stipe was abruptly bulbous, that is not something I expect for C. olivieri (which can have a dramatically swollen base, but isn’t marginate).

Only other thing I can add is that C. rachodes is somewhat intermediate.
I’d be happy to leave these as Chlorophyllum sp unless we get more info.

they both have an abruptly bulbous base!
By: Debbie Viess (amanitarita)
2014-12-20 17:29:17 MST (-0700)

but the cap and gestalt looks more like olivieri. too bad nobody collected them.

here are good descriptions of both species:


as Christian mentioned, olivieri has more shaggy caps scales, brunneum has flatter scales.

I’m still voting olivieri, on both the evidence shown and stated. maybe someone else picked them and can confirm?

three on a shaggy?

These are Chlorophyllum brunneum
By: Alan Rockefeller (Alan Rockefeller)
2014-12-20 12:12:47 MST (-0700)

I saw this patch an hour after BakerSt10 photographed them, hit the brakes and dug one up. They have an abruptly marginate bulb at the base of the stem.

I considered taking them for food, but I had other edibles from Joaquin Miller Park so I left them for other people to enjoy since they were so visible from the road.

didja dig it up?
By: Debbie Viess (amanitarita)
2014-12-20 09:50:41 MST (-0700)

you need to see that base to do a decent ID to Chlorophyllum species.

it has the aspect of olivieri, and I even see a bit of that olivaceous coloration.

if so, what is UP with these things growing in the BA??!

Thanks Christian!
By: BakerSt10
2014-12-19 07:32:52 MST (-0700)

For your feedback

Created: 2014-12-18 18:12:13 MST (-0700)
Last modified: 2014-12-21 10:24:39 MST (-0700)
Viewed: 111 times, last viewed: 2017-06-19 14:31:18 MDT (-0600)
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