Observation 19907: Psilocybe quebecensis Ola’h & R. Heim
When: 2009-03-13
Collection location: Michigan, USA [Click for map]
No herbarium specimen

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

Species Lists

Images

40323
Copyright © 2009 fetalscab
40316
Copyright © 2009 fetalscab
40317
Copyright © 2009 fetalscab
40318
Copyright © 2009 fetalscab
Mycelium
40319
Copyright © 2009 fetalscab
Habitat
40320
Copyright © 2009 fetalscab
40321
Copyright © 2009 fetalscab
40322
Copyright © 2009 workman
Microscopy by Workman

Proposed Names

-15% (7)
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
58% (5)
Eye3 Eyes3
Based on microscopic features: Presence of pleurocystidia with swollen apices, wide spores.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Microscopy reexamined
By: Workman
2009-11-11 17:59:34 PST (-0800)

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 15:20:37 PDT (-0700)
Last modified: 2014-03-04 07:38:14 PST (-0800)
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