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24-04-2019 22:22

Castillo Joseba Castillo Joseba

Me mandan el material desde Galicia,  recogido en

25-04-2019 11:39

Castillo Joseba Castillo Joseba

Me mandan el material desde Galicia,  recolectado

22-04-2019 19:04

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, April 2019

25-04-2019 00:46

Valencia Lopez Francisco Javier

Hola a todos/asAdjunto fotos de unas Melastiza rec

24-04-2019 22:27

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Voici un Ciboria trouvé

25-04-2019 02:27

Sigrid Jakob

My first post - please let me know if important in

24-04-2019 13:05

Enrique Rubio Enrique Rubio

I am seeking information about Unguiculariopsis le

23-04-2019 22:31

William Slosse William Slosse

Quelques semaines passées je trouvais un asco sur

22-04-2019 20:12

Riet van Oosten Riet van Oosten

Hello, Just a try ... Found by Laurens van der L

22-04-2019 11:28

Castillo Joseba Castillo Joseba

Galicia,  recolectada en Osmunda regalisA ver si

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Coccomyces strobi on Pinus strobus
Ethan Crenson, 16-04-2019 02:06
Hello,

Yesterday in New York City on Pinus strobus I saw what I assumed was a pyrenomycete.  Tiny erumpent pustule-like fruiting bodies on a fallen branch.  However, when I sectioned one of them I found that the interior is a solid yellow.  Asci are 92.5-107.5 x 7.5-10µm.  Paraphyses are filiform and curled at the ends.  Ascospores are 30-36 x 1.5-2µm.  I am assuming that this is Coccomyces strobi because of the substrate and the spore shape and dimensions, even though in this state it is probably immature (?).  Any input would be very welcome.

Ethan
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Jason Karakehian, 16-04-2019 12:54
Jason Karakehian
Re : Coccomyces strobi on Pinus strobus
Hi Ethan, that definitely looks rhytismatalean from the microphotographs. Perhaps C. strobi as you say its immature. We found these mature and sporulating in mid May last year up here in Concord, MA. Best wishes - J
Ethan Crenson, 16-04-2019 17:59
Re : Coccomyces strobi on Pinus strobus
Hello Jason!  Very good to hear from you.  Thanks for your help.  Perhaps I'll leave these in a suitable place and see if they mature.
Jason Karakehian, 16-04-2019 21:57
Jason Karakehian
Re : Coccomyces strobi on Pinus strobus
Hi Ethan, my pleasure. You can also go back and find more in a month. They're pretty common - at least we found many injured or dead saplings with these fungi fruiting on them last year. Kind regards - J