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20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

03-07-2025 20:08

Francois Guay Francois Guay

I found this interesting yellowish asco growing on

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

02-07-2025 17:26

Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

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Black asco on Phytolacca americana
Ethan Crenson, 23-12-2016 14:43
An anamorph, I think.  Black raised spots on stems of Phytolacca americana.  Very tiny .5mm.  Conidiospores are hyaline, curved and range from 25-32 by 2. 
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John Plischke, 11-01-2017 03:13
John Plischke
Re : Black asco on Phytolacca americana
I have seen this before but no ideas.  Hopefully someone else knows it.
Luc Bailly, 11-01-2017 19:22
Luc Bailly
Re : Black asco on Phytolacca americana
Hello Ethan,
You have to search among Phomopsis. It's an anamorph of a Diaporthe. Those curved beta-conidia's are typical of Phomopsis, and the shape of the conidiomata reminds me of some Phomopsis I've seen.
Cheers - LUC.