Observation 15475: Psilocybe subaeruginosa Cleland
When: 2008-06-07
No herbarium specimen

Notes: This Psilocybe subaeruginosa specimen was found in native forest, fruiting directly from the base of a dead tree, the first two images show growth progress over one week.
Although I only collected one specimen it was in good condition and I was able to do a good microscopic examination, this collection differs from my other collection by being a lot taller and broadly umbonate.
I could not locate any branched cheilocystidia like in my first collection.

Images

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Scale divisions= 2.5microns for all microscopy.
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Basidium.
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Basidium.
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Cheilocystidia.
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Pleurocystidia.
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Cheilocystidia.
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Cheilocystidia.
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Cheilocystidia.
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Cheilocystidia.
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Cheilocystidia.
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Cheilocystidia.
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Comments

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Thanks guys,
By: Michael W (Michael Wallace)
2008-12-17 23:23:14 CST (-0500)

The rhizomorphs are on the base of a dead tree(Melicytus ramiflorus) that is still standing, they are about 4cm off the ground!!!
I have added an image showing two Psilocybe subaeruginosa specimens found in wood chips on the right and two specimens of the above collection on the left.
I understand how Douglas could be sceptical and will make the images in the future..

No doubt about it.
By: Erin Page Blanchard (CureCat)
2008-12-17 14:25:48 CST (-0500)

That’s a Psilocybe.

I love the rhizomorphs in the back drop of the photo of the pin.

Very nice documentation, as always Inski.

Wood loving hallucinogenic psilocybe for sure!
By: Dan Molter (shroomydan)
2008-12-17 13:40:22 CST (-0500)

Great observation Inski!

Alas,
By: Michael W (Michael Wallace)
2008-12-17 07:12:58 CST (-0500)

I would have done so if I had any doubt of the genus but this collection was made 6 months ago and I don’t have the specimen anymore!
This is definitely a Psilocybe species, most likely P. subaeruginosa.
We have many strange and different fungi here in New Zealand and I can see how you would be sceptical, in the future I will make more images showing the microscopic form of the pileus!

Well, if you are going to get out the scope…
By: Douglas Smith (douglas)
2008-12-17 00:59:46 CST (-0500)

It seems like if you are there with the scope, it would pay to get a shot of the cap surface to make sure it isn’t cellular, just to make sure of the genus.

Image,
By: Michael W (Michael Wallace)
2008-12-16 22:45:21 CST (-0500)

I added an image of the collected specimen that shows the blue bruising a bit better!

No,
By: Michael W (Michael Wallace)
2008-12-16 22:40:48 CST (-0500)

I did not examine the pileus as I am certain this is a Psilocybe species due to the blueing reaction, there was a seperable gelatinous pellicle, although I do see what you mean, the spores are rather ellipsoid compared to my other collection which has ellipsoid to subrhomboid spores.

Check the cap surface?
By: Douglas Smith (douglas)
2008-12-16 22:29:12 CST (-0500)

Did you check the cap surface? The spores are rather elliptical for Psilocybe, the spores and the cystidia could also be Psathyrella. Did you check that the cap surface was a cutis (or even an ixocutis for Psilocybe), or was it cellular?

Created: 2008-12-16 22:04:55 CST (-0500)
Last modified: 2010-12-08 03:23:51 CST (-0500)
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