Observation 191151: Amanita chrysoblema G.F. Atk.

When: 2014-12-01

Collection location: Rogers Lakewood Park, Porter Co., Valparaiso, Indiana, USA [Click for map]

Who: Marielle Biscocho (mbiscoch)

No specimen available

-This specimen was associated with the soil. It was found growing in the middle of a grass field with nothing around it.
-It was growing gregariously because there were many forms of it around. Some of the caps were cup-shaped while the mature forms were flat.
-The diameter of a mature pileus was measured to be about 5.5 cm.
-The surface of the pileas was shiny, somewhat “sticky” (tacky), and granular because it looked like it had warts on the surface.
-The pileal shape was a plane.
-The pileas was of a pearly, white/beige color.
-The flesh was white in color.
-The centrally located stipe was also pearly white.
-The stipe was measured to be around 6.8 mm in length, and about 0.6 mm in width.
-The shape of the stipe was hollow and somewhat clavate.
-The base of the stipe was assumably a myceliel pad.
-The stipe was “sticky” (tacky), shiny, and appressed squamulose, and there was no changes when it was damaged with a knife.
-The beige-colored gills were attached to the collar, and the margins were even.
-It appeared to have two lamellae tiers that were regular in pattern.
-There was no gill latex to be detected, but an upturned annulus and circumsessile volva were detected.
-From the spore print, it was a light tan.

Many life stages of this specimen was collected. At an immature form, the pileus was convex. However, the bigger forms were flat and planer.

[Note: Previous observation that I destroyed because I had lost the picture of my specimen. The uploaded picture for this observation is credited to user halstapl]


Mb31 spore.jpg
Microscopic, 40x magnification

Proposed Names

27% (1)
Recognized by sight: Remnants of the volva on the pileus
Used references: Mushrooms of the Midwest by Michael Kuo and Andrew S. Methven
9% (2)
Recognized by sight
Based on microscopic features: Smooth round spores

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2014-12-01 15:45:13 PST (-0800)
Last modified: 2017-07-12 22:36:32 PDT (-0700)
Viewed: 44 times, last viewed: 2018-03-10 02:36:35 PST (-0800)
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