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21-09-2017 08:27

BERNARD CLESSE BERNARD CLESSE

Bonjour à tous,Ci-joint ce que je pense être un

20-09-2017 11:27

Edvin Johannesen Edvin Johannesen

This Hymenoscyphus (?) was found on Gymnocarpium d

10-09-2017 20:58

BERNARD CLESSE BERNARD CLESSE

Sur laissée de sanglier, en pessière fraîche.

13-09-2017 08:09

Ethan Crenson

Hello,In the Bronx, Pelham Bay Park, New York, US.

20-09-2017 13:32

Viktorie Halasu Viktorie Halasu

Hello forum,last week I finally found a Smardaea b

16-09-2017 12:45

Lothar Krieglsteiner Lothar Krieglsteiner

... collected this week in Nature Reserve "Žofín

18-09-2017 23:14

Philippe Louasse

Bonsoir à tous, Les 9èmes Journées mycologique

12-08-2014 11:56

Zuzana Egertova Zuzana Egertova

Hello, in this ascomycete everything seems to fit

18-09-2017 17:54

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Estoy buscando este artículo: Med

21-08-2017 01:44

Ethan Crenson

In the Green Mountains of Southern Vermont, US. 

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Cryptovalsa or Diatrypella-polysporous pyreno on Platanus
Ethan Crenson, 06-09-2017 05:36
In New York City, Inwood Hill Park. On a branch of Platanus×acerifolia.  Dark erumpant pustules, wart-like, cracking through the bark.  Up to 1 mm in diameter by about .5 mm in height, some confluent.  Several papillate ostioles on each stromata.  In section, white material around the perithecia. Asci polysporous, the spore bearing part measuring 70-80 by 15-17µm, the entire ascus 102-188µm long. Appearing IKI- after KOH pretreatment.  Ascospores allantoid, yellow in mass with tiny oil droplet at each end, 7.5-12.5 by 2.5µm.  In Vasilyeva and Stephenson (2004), Pyrenomycetes of the Great Smokey Mountains II, (admittedly, not my region) it aligns well with Cryptovalsa prominens--and it is listed with Platanus as host.  Thank you in advance!
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