Observation 19907: Psilocybe caerulipes (Peck) Sacc.

When: 2009-03-13

Collection location: Michigan, USA [Click for map]

Who: Alan Rockefeller (Alan Rockefeller)

No specimen available

Collected by fetalscab; microscopy by Workman. For more information see this thread.

Species Lists


Copyright © 2009 fetalscab
Copyright © 2009 fetalscab
Copyright © 2009 fetalscab
Copyright © 2009 fetalscab
Copyright © 2009 fetalscab
Copyright © 2009 fetalscab
Copyright © 2009 fetalscab
Copyright © 2009 workman
Microscopy by Workman

Proposed Names

23% (6)
Based on microscopic features: Spores length: 7.7-9.8 microns, pale yellowish brown.
Cheilocystidia length: (15.5)18.5-30.3 microns, rarely bifurcate.
Pleurocystidia very scarce and scattered, easy to miss or discount as anomolous.
Basidia, both 2 and 4 spored observed.
Despite what appears to be the occasional pleurocystidia, all other features match well with Psilocybe caerulipes.
Based on chemical features: Blue staining
-13% (4)
Based on microscopic features: Presence of pleurocystidia with swollen apices, wide spores.

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= Observer’s choice
= Current consensus


Add Comment
Microscopy reexamined
By: Workman
2009-11-11 19:59:34 CST (-0600)

What I thought were anomalous pleurocystida are actually rather typical for Psilocybe quebecensis. The spores are also too wide for Psilocybe caerulipes.

Created: 2009-04-01 17:20:37 CDT (-0500)
Last modified: 2018-11-27 00:10:52 CST (-0600)
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