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14-08-2014 02:45

Danny Newman Danny Newman

In collecting the larger of the two fungi in the f

21-08-2014 11:18

Miguel Ãngel Ribes Miguel Ángel Ribes

Hello friendsI have this Peziza on Fagus 6-7 cm, w

19-08-2014 16:09

Steve Clements

Hi,I had a look at this leaf spot on Geum urbanum.

20-08-2014 13:54

Miguel Ãngel Ribes Miguel Ángel Ribes

Good morning I think I have no doubt about the id

19-08-2014 13:02

Miguel Ãngel Ribes Miguel Ángel Ribes

Good morningI have this Otidea in Fagus sylvatica,

18-08-2014 22:40

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Good evening,is this Psilopezia nummularialis?Apot

19-08-2014 16:18

Steve Clements

Possible Geocladium luteolumHi,This was found on a

19-08-2014 08:30

Blasco Rafael Blasco Rafael

De Hola, Alguien Tiene el siguiente Articulo, Can

18-08-2014 18:42

Mafalda Freire Fernando Mafalda Freire Fernando

Hi, Does anyone have this one?Entomogenous fungi f

18-08-2014 14:51

hannie wijers

Hello everyone, In the forest on the sandy soil u

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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.
  • message #57230
  • message #57230
  • message #57230
  • message #57230
  • message #57230
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!