Accès membres

Mot de passe perdu? S'inscrire

12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

12-03-2026 14:37

David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Gernot Friebes

Hi,I would like to share a collection of Scopinell

« < 1 2 3 4 5 > »
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
  • message #57311
  • message #57311
  • message #57311
  • message #57311
  • message #57311
  • message #57311
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