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21-12-2024 12:45

Marc Detollenaere Marc Detollenaere

Dear Forum,On naked wood of Fagus, I found some ha

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Bometon Javier Bometon Javier

Habitat en el suelo, con presencia de Calluna mult

22-12-2024 10:19

Simon Gurtner Simon Gurtner

Hello,can anyone help me identify this small ascom

22-12-2024 10:53

Bernard CLESSE Bernard CLESSE

Pourriez-vous me confirmer ma détermination de ce

20-12-2024 17:32

Louis DENY

Bonsoir forumTrouvé à Belfort, 400 m altitude, s

22-12-2024 10:40

Castillo Joseba Castillo Joseba

me mandan elmaterial seco de Galicia,  recolectad

21-12-2024 11:14

Michel RIMBAUD

Hello,Does somebody could send me a key for Olla/U

17-02-2013 08:38

Alain GARDIENNET Alain GARDIENNET

Bonjour, J'ai trouvé ces acervules sur feuille d

21-12-2024 09:08

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

17-12-2024 12:33

Lothar Krieglsteiner Lothar Krieglsteiner

this fluffy anamorph was repeatedly found on decid

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Need fresh specimens of Ophiognomonia melanostyla
Amy Rossman, 16-03-2011 14:52
Dear avid microfungus collectors,

We are working on the phylogeny of the Diaporthales especially the Gnomoniaceae. We have two isolates of the type species of Ophiognomonia, namely O. melanostyla, but they are slightly different. Thus we would like additional fresh collections of this species so that we can make isolations and sequence it. It occurs in spring on the undersurface of overwintered leaves of Tilia. The black perithecia are partially immersed and it has a very long beak. The ascospores are long, thin, 37-43 x 1.5 2 um. If you find this species and are willing to send it to us, please make an air-dried specimen wrapped in paper and send it to me as an herbarium specimen.

Thank you!

Amy Rossman, U.S. National Fungus Collections, Rm. 246, B010A, 10300 Baltimore Ave., Beltsville, MD 20705, amy.rossman@ars.usda.gov
Alain GARDIENNET, 16-03-2011 15:08
Alain GARDIENNET
Re:Need fresh specimens of Ophiognomonia melanostyla
Hi Amy,
I saw "melanostyla" yesterday, many thousands ! I will look at them and I'll give you news.
I will look for french Apioporthe vespris too. I already one recolt in my herbarium, but recolted in 2009. I suppose it's too old, isn't it ?
Alain
Amy Rossman, 16-03-2011 15:44
Re:Need fresh specimens of Ophiognomonia melanostyla
Alain,

Wonderful! I know it's the season for these fungi. I'm afraid that 2009 is too old. A. vepris would be useful as well.

Amy


Luc Bailly, 17-03-2011 15:04
Luc Bailly
Re:Need fresh specimens of Ophiognomonia melanostyla
I have several places where I usually gather it. As soon as the weather is a bit better, I can check to see if the perithecia's are mature enough and send you some samples.

Cheers - Luc BAILLY.
Yannick Mourgues, 17-03-2011 22:40
Yannick Mourgues
Re:Need fresh specimens of Ophiognomonia melanostyla
Amy,

I've got it too from Lozère (48) - France. I can collect it for you if you want.
Tell me.

Yannick
Alain GARDIENNET, 18-03-2011 08:58
Alain GARDIENNET
Re:Need fresh specimens of Ophiognomonia melanostyla
I check it this morning, it's OK, ascospores around 40 x 1.5 µm. I will post it in one hour.
Alain
Yannick Mourgues, 21-03-2011 23:24
Yannick Mourgues
Re:Need fresh specimens of Ophiognomonia melanostyla
Amy ?
Do you need Ophiognomonia melanostyla ? (see message 17/03)
Yannick