Observation 19461: Lepiota magnispora Murrill
When: 2009-03-16
Herbarium specimen reported

Notes: This beautiful Lepiota species was found in native New Zealand forest in soil and leaf litter under Kunzea ericoides, Cyathea dealbata and Cyathea medullaris.

I am not certain that this is L. magnispora, it was the closest name I could find!

Pileus: 20-50mm in diameter. Conic to plane and slightly uplifted with maturity, with a broad umbo. Margin adorned with remnants of a fibrillose partial veil. Colour white with light brown floccose patches.
Stipe: 50-100mm long by 5-8mm in diameter. Even to slightly enlarged at the base, pruinose. Colour dingy white.
Lamellae: Attachment free. Close to subdistant. Margin eroded. Colour white.

The spores are a good match for L. magnispora in size and shape but the description I have read mentions that cystidia are absent, these specimens exhibit abundant cheilocystidia!

Images

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Spores. Scale divisions=2.5 microns.
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Spores.
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Basidium.
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Cheilocystidia.
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Cheilocystidia.
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Sorry, not pileipellis.
Hyphae from remnants of partial veil on pileus margin.

Proposed Names

28% (4)
Eye3
Based on microscopic features
74% (3)
Eye3 Eyes3
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
Forgotten detail,
By: Michael W (Michael Wallace)
2009-03-18 20:46:28 CDT (-0400)

One detail I failed to mention, the specimen in the fourth image down seemed to be fruiting from what looked like a sclerotia, it was about 40mm in diameter and the flesh is brown, it broke when I made my collection and the inside can be seen in image #17.

Thanks,
By: Michael W (Michael Wallace)
2009-03-18 20:36:41 CDT (-0400)

Thanks for the confirmation Else, I was right the first time.
Thanks Joshua for clearing that up for me, I guess you can’t trust everything you read on the internet!
I have received your messages and have dried specimens of all my finds that are relevant to your study, I will send them as soon as possible, I would like to keep part of my collections for my herbarium collection but will send you some well dried and hopefully well preserved specimens!
Regards,
Michael.

Cystidia
By: Joshua Birkebak (Shua)
2009-03-18 16:04:11 CDT (-0400)

And to clear things up L. magnispora has abundant cheilocystidia…

close to, or identical with, Lepiota magnispora
By: else
2009-03-18 14:32:08 CDT (-0400)

The shape of the spores (plus of course the general appearance of the fruitbody) point to Lepiota magnispora or thereabouts. Definitely penguin spores (and not the plumper spores with a curved back as in L. clypeolaria). Very nice to see all the microscopic details!

I agree,
By: Michael W (Michael Wallace)
2009-03-17 02:05:54 CDT (-0400)

I will change it to Lepiota sp.

Doubtful
By: Clive Shirley (myxo)
2009-03-17 01:53:57 CDT (-0400)

Hi Michael,

There is no record of this species been found in NZ before so I to would have my doubts. On the other had as this genus has never been studied in NZ before who knows what here.

Created: 2009-03-16 23:35:00 CDT (-0400)
Last modified: 2009-03-16 23:35:00 CDT (-0400)
Viewed: 158 times, last viewed: 2016-10-25 18:22:40 CDT (-0400)