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24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-04-2024 10:07

Mathias Hass Mathias Hass

Hello, Does anyone know what this is? Found on J

24-04-2024 21:54

éric ROMERO éric ROMERO

Bonjour, J'ai trouvé ce Lasiobolus sur laissées

23-04-2024 15:18

Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 13:17

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 21:49

Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

22-04-2024 08:54

Rafael Cabral

Bonjour à toutes et tous, Quelqu'un pourrait-il

22-04-2024 20:38

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon.Does anyone know this anamorph?It g

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Chaetosphaerella ?
Ethan Crenson, 11-04-2019 06:53
From New York City last weekend, growing on an old Pyrenomycete (Eutypa, probably) I think this is Chaetosphaerella.  The small clusters of black fruiting bodies seem somewhat flattened at the apex.  They are seated in a dense brown subiculum.  I did not see any asci in any of my mounts.  Spores are 3-septate, brown with hyaline end cells and guttules in the two inner cells, usually curved. They measured 24-29 x 6-7µm.  I'm uncertain if I saw any conidia-- in the final photo there is a bowling-pin shaped brown cell that has two guttules. 

Could this be C. fusca or C. phaeostroma?  Does the difference come down to the conidia?

Thank you in advance for your help.
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Andrew N. Miller, 11-04-2019 14:45
Andrew N. Miller
Re : Chaetosphaerella ?
This is C. fusca.  The difference is whether or not the ascomata become collabent and the size of the ascospores (longer in C. phaeostroma).  


https://www-s.life.illinois.edu/pyrenos/records/show_by_page?page=24

Andy
Ethan Crenson, 11-04-2019 17:26
Re : Chaetosphaerella ?
Andy, thank you for your help!