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20-08-2015 01:36

Lepista Zacarias

Hello everybody.This one was growing in a piece of

21-08-2015 07:30

Dave Wasilewski

There is a diversity of species of small yellow cu

21-08-2015 08:22

Castillo Joseba Castillo Joseba

Pequeñas bolas,  redondas y peludas,  en tocon

21-08-2015 08:19

Castillo Joseba Castillo Joseba

a ver que os pareceEsporas de 14,2-15 x 4,4-4,6M=

21-08-2015 08:14

Castillo Joseba Castillo Joseba

sobre Carabus splendensNo tengo muy claro como ha

20-08-2015 01:29

Malcolm  Greaves Malcolm Greaves

This Scutellinia seems to fit well with S superba

14-08-2015 00:00

Lepista Zacarias

Dear all,I would like to classify the ascomycete g

19-08-2015 22:09

Alain GARDIENNET Alain GARDIENNET

Bonsoir, Je recherche la description de ce champi

20-08-2015 12:05

Blasco Rafael Blasco Rafael

Hola, tengo esta muestra recogida a 2150m, pradera

19-08-2015 12:13

brigitte capoen

Bonjour , Je suis à la recherche des deux publica

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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!