Observation 83511: Panaeolus subbalteatus (Berk. & Broome) Sacc.

When: 2010-06-16

Collection location: Chewelah, Washington, USA [Click for map]

Who: Panz

No specimen available

Surprisingly the cluster was on the side of a dirt road with mixed in field grass tufts. I noticed the snapshot from a sideglance while driving. It appeared that maybe there had been some tilling from roadwork in recent year or more to cause burred plant/grass stalks in the soil. The trees surrounding area were ponderosa, bull pine, fir and tamarack. Cinctulus are actually quite prevalent in the Colville river valley/drainage. Easy to find after heavy spring/summer/fall rains in Manure/hay compost piles where good conditions exist. But fruiting like this is nearly impossible. Felt privileged to be a witness and to still have the spores.


Panaeolus Cinctulus Eastern Washington Chewelah
Panaeolus Cinctulus Eastern Washington Chewelah
Gill Shots

Proposed Names

14% (2)
Recognized by sight: I could see belted zone and outline from car while driving… Stopped and to my amazement there was the biggest, meatiest Cintulus I have ever seen growing on the side of a rural road outside of Chewelah Washington. later the spore print matched the Jet black.
57% (1)
Recognized by sight: The species concept of Agaricus (Panaeolus) cinctulus is based on a drawing made by Bolton in 1791. No type collection exists. Since it is not possible to know whether Bolton’s species was Panaeolus subbalteatus, P. olivaceus or P. fimicola, I consider Panaeolus cinctulus to be a nomen dubium.
Based on microscopic features: The gill faces need to be checked for sulphidia; the presence of these would indicate that it is probably Panaeolus fimicola.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Gill shot?
By: Tim Sage (T. Sage)
2011-11-28 02:28:12 CST (-0500)


Created: 2011-11-28 00:56:26 CST (-0500)
Last modified: 2013-12-14 16:22:23 CST (-0500)
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