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20-06-2013 22:33

Marja Pennanen

Seems, that determination is now just impossible f

20-06-2013 16:47

Marja Pennanen

Hello again,today I found something new for me on

20-06-2013 19:47

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos.Pongo unas fotos de una especie que h

18-06-2013 17:43

Francisco Calaça Francisco Calaça

Hi all!I have been found this specie in cow dung i

20-06-2013 17:04

Jean-Paul Priou Jean-Paul Priou

Quelqu'un ou quelqu'une a le papier suivant ? Than

19-06-2013 12:42

Garcia Susana

HelloFound ascomycete growing on leaves of Acer.I

19-06-2013 11:24

Marja Pennanen

Hello forum,I found some pinkish ascos on Luzula m

16-06-2013 16:45

Elisabeth Stöckli

BonjourTrouvé au sol sur feuilles mortes de Popol

17-06-2013 22:53

Jakob Schneller Jakob Schneller

Recently I hav found this fungus on dung¨. I am s

18-06-2013 21:47

Ralph Vandiest Ralph Vandiest

Hello,In a culture with dead urtica stems I found

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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!