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17-09-2025 10:50

Heather Merrylees

Hi there!I am hoping for any advice on the identif

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

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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