Observation 52989: Psilocybe subtropicalis Guzmán
When: 2010-09-15
No herbarium specimen

Proposed Names

62% (3)
Recognized by sight
84% (1)
Eye3 Eyes3
Recognized by sight
Used references
Based on microscopic features

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Spores subromboides
By: A. Cortés-Pérez (Alonso)
2010-09-19 18:41:02 CDT (-0400)

These specimens have spores subromboides belong to section Cordisporae, a review of the cystidium could approach a member of that section.

Maybe,
By: Michael W (Michael Wallace)
2010-09-16 19:56:09 CDT (-0400)

Both those sections contain species with floccose appressed fibrils on the lower half to two thirds of the stipe and some are pruinose towards the apex, species in section Zapotecorum have spores that are ellipsoid to subellipsoid with the occasional species with ovoid, subovoid to subrhomboid spores, species in section Cordisporae mainly have rhomboid to subrhomboid spores so I think the shape of the spores should tell a lot about what section this belongs in, the above specimens are almost identical in macroscopic form to P. aucklandii apart from the slightly more pronounced umbo.
I wonder if any of the above specimens had a pseudorhiza which I have noted in some collections of P. aucklandii which interestingly is not mentioned in any published description of that species.

I have heard that Dr Guzman has reduced the number of species in section Zapotecorum quite drastically so it will be interesting to see where he places those species.

Cordisporae
By: Alan Rockefeller (Alan Rockefeller)
2010-09-16 12:42:31 CDT (-0400)

The way the stem is floccose in the bottom half and not in the top half strongly suggests that this is a member of Psilocybe section Cordisporae. P. villarrealiae, P. weilii and P. caerulescens share this feature.

Members of section Zapotecorum tend to have actual scales instead of just floccose mycelium.

Interesting,
By: Michael W (Michael Wallace)
2010-09-15 20:23:07 CDT (-0400)

This looks almost identical to this species from New Zealand, Psilocybe aucklandii.
Definitely belonging in section Zapotecorum.
http://mushroomobserver.org/47415?q=1jMn

Created: 2010-09-15 18:19:19 CDT (-0400)
Last modified: 2012-07-16 20:32:22 CDT (-0400)
Viewed: 262 times, last viewed: 2016-10-28 09:41:39 CDT (-0400)
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