
30-06-2025 16:56
Lydia KoelmansPlease can anyone tell me the species name of the

01-07-2025 23:37
Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57
Ethan CrensonHi all, Another find by a friend yesterday in Bro

30-06-2025 14:45

This is a quite common species on Nothofagus wood

25-06-2025 16:56
Philippe PELLICIERBonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11
Ethan CrensonHello all, A friend found this disco yesterday in

28-06-2025 16:00
Hello.A tiny fungus shaped like globose black grai
Need fresh specimens of Ophiognomonia melanostyla
Amy Rossman,
16-03-2011 14:52
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
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
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
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
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.
Cheers - Luc BAILLY.
Yannick Mourgues,
17-03-2011 22:40

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
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
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
Alain
Yannick Mourgues,
21-03-2011 23:24

Re:Need fresh specimens of Ophiognomonia melanostyla
Amy ?
Do you need Ophiognomonia melanostyla ? (see message 17/03)
Yannick
Do you need Ophiognomonia melanostyla ? (see message 17/03)
Yannick