Observation 204887: Calvatia Fr.

When: 2015-05-17

Collection location: Palma, Osa Peninsular, Costa Rica [Click for map]

Who: pamsai (shirdipam)

No specimen available

growing in wet leaf litter in tropical rainforest

Species Lists


Proposed Names

63% (2)
Recognized by sight
-34% (2)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
This is not an agaric.
By: Danny Newman (myxomop)
2015-06-14 10:20:33 PDT (-0700)

There is no cross section to ensure that, but one is hardly necessary. Look at images of C. cf. rubroflava elsewhere on the site (particularly in the Neotropical Fungi list) and you’ll see the exact same folds and contorting above a pseudostipe as shown here.

exactly Dave.
By: Debbie Viess (amanitarita)
2015-06-14 07:33:36 PDT (-0700)

hence my vote!

Reminds me somewhat of…
By: Dave W (Dave W)
2015-06-14 05:18:30 PDT (-0700)

the aborted form of Armillaria caused by Entoloma abortivum. So I wonder if this is an aborted form of some agaric? Any other mushrooms growing near this?

First and last photos
By: Daniel B. Wheeler (Tuberale)
2015-05-27 11:42:04 PDT (-0700)

suggest fungi has a exterior hymenium unlike Calvatia. Only cross-section will prove or disprove.

By: pamsai (shirdipam)
2015-05-24 11:20:54 PDT (-0700)

It felt really solid…

By: Debbie Viess (amanitarita)
2015-05-24 08:55:51 PDT (-0700)

next time, please cut it open. we needed more clues to make an ID!