Observation 11974: Psilocybe caerulescens Murrill
When: 2008-09-14
No herbarium specimen

Notes: Found by SEmushroomHunter, ID’d by Workman, who says "Spores: subrhomboid 6.6-8.2 microns
Cheilocystidia: 16.4-22.3 microns
Pleurocystidia: absent

Psilocybe weilii has smaller spores and abundant pleurocystidia. This specimen keys out solidly as Psilocybe caerulescens which is not unknown in the SE United States. P. caerulescens was first described by Murrill from Alabama in 1923 and as far as I can tell it hasn’t been reported from anywhere in the US since. This sample could be a remnant of that first described collection. Samples should be sent to a herbarium to officially document the find.
The only reason this sample was determined to be different from P. weilii is because of the microscopic examination. The two species are macroscopically virtually indistinguishable. I suspect that many of the “weilii” collections are actually unrecognized caerulescens or a mix between the two species. Further microscopic examinations of various collections is needed."

Images

23907
Copyright © 2008 SEmushroomHunter
23904
Copyright © 2008 SEmushroomHunter
23905
Copyright © 2008 SEmushroomHunter
23906
Copyright © 2008 SEmushroomHunter
23908
Copyright © 2008 SEmushroomHunter
23909
Copyright © 2008 SEmushroomHunter
23910
Copyright © 2008 SEmushroomHunter
23911
Copyright © 2008 SEmushroomHunter
23912
Copyright © 2008 SEmushroomHunter
23913
Copyright © 2008 SEmushroomHunter
23914
Copyright © 2008 Workman
Microscopy composite by Workman
23915
Copyright © 2008 Workman
Microscopy by Workman

Proposed Names

63% (4)
Eye3
Recognized by sight
Based on microscopic features: See the last image
Based on chemical features: Blue staining
92% (3)
Eyes3
Recognized by sight
Based on microscopic features

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
No one has commented yet.

Created: 2008-10-04 23:22:35 CDT (-0400)
Last modified: 2014-03-17 20:21:23 CDT (-0400)
Viewed: 888 times, last viewed: 2016-11-01 17:11:48 CDT (-0400)
Show Log