Observation 58804: Macrolepiota colombiana Franco-Mol.

Secotioid. Original collectors took no notes, only two pictures.

Dried specimen obtainable with permission from el Herbario Nacional de Bolivia

Species Lists


Copyright © 2007 Larry Evans
Copyright © 2007 L

Proposed Names

51% (3)
Recognized by sight
92% (2)
Used references: else’s comments, Observation 158376

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: walt sturgeon (Mycowalt)
2018-11-15 20:59:38 GMT (+0000)

The veil hasn’t broken yet. This is a button.

Where is the ring?
By: Walter H. P. Moschen (wmoschen)
2018-11-15 18:49:41 GMT (+0000)

Macrolepiota colombiana shouldn’t have a ring on the stipe?

With the many records of this sp.
By: Danny Newman (myxomop)
2015-11-05 02:03:25 GMT (+0000)

both here and on Facebook, I rescind all earlier assertions of the secotiodity (?) of this collection. it now appears to be a deadringer for M. colombiana, or something very similar.

By: R.W. (Al.)
2014-09-06 01:50:04 BST (+0100)

I’m not saying it is, but it looks like a Panaeolus papilionaceus pin with a funny colored stipe

secotioid? and compare with the Australian species.
By: else
2012-02-22 23:31:42 GMT (+0000)

Two comments:
1. Secotioid Macrolepiota species are known from Australia – see
Sequestrate species of Agaricus and Macrolepiota from Australia: new species and combinations, and their position in a calibrated phylogeny
Teresa Lebel and Anna Syme
Mycologia 2011 11-092; Published online: November 8, 2011, doi:10.3852/11-092

these taxa do not look like Macrolepiota species, macroscopically, anymore.

2. the present specimen looks like a normal Macrolepiota species of which the pileus has not opened up, for whatever reason. It does not look like a secotioid taxon.

Maybe Else can help
By: walt sturgeon (Mycowalt)
2012-02-22 18:45:34 GMT (+0000)

The secotioid species of Agaricaceae s. str. are related to Macrolepiota s. str., the Chlorophyllum/Macrolepiota sect. Laevistipedes group, or to Agaricus (Fig. 4). No gasteromycetation was observed in the Leucoagaricus/Leucocoprinus clade (Fig. 1).
The species related to Macrolepiota have been shown to be systematically very heterogeneous (Vellinga et al. 2003, Vellinga 2004), and this also applies to their gasteroid relatives

The above is from: http://www.db-thueringen.de/...

Your questions,
By: Danny Newman (myxomop)
2012-02-22 18:34:34 GMT (+0000)

and most any question of such specificity on this observation, will have to go without answers until a similar collection is made elsewhere and more information can be gathered. They’re good questions, make no mistake.

Suffice it to say, I know of no secotioid Macrolepiota spp., and I find myself in no position to call the Amazon, much less any other habitat, “wrong” for containing a very long-stiped species of fungus without ballistosporic discharge. The one thing that is known about this collection is that it is secotioid. Why is not a question I can answer.

not so, dan
By: Danny Newman (myxomop)
2012-02-20 15:42:45 GMT (+0000)

this sucker’s secotioid. guess that should be in the ob notes…

thanks for the input all the same.

shameless bump
By: Danny Newman (myxomop)
2012-02-20 04:22:06 GMT (+0000)

fresh eyes on a total head-scratcher. any takers?

Created: 2010-11-14 09:18:25 GMT (+0000)
Last modified: 2018-11-15 20:59:39 GMT (+0000)
Viewed: 256 times, last viewed: 2018-11-15 22:48:07 GMT (+0000)
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