02-07-2025 09:32
Nicolas VAN VOOREN
Hello, bonjour.Here is the paper I'm searching for
30-06-2025 16:56
Lydia KoelmansPlease can anyone tell me the species name of the
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Josep Torres
Hello.A Pleosporal symbiotic organism located and
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Edvin Johannesen
This tiny, rather "rough" erumpent asco was found
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Ethan CrensonHi all, Another find by a friend yesterday in Bro
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Götz Palfner
This is a quite common species on Nothofagus wood
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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
Leptosphaeria on Impatiens
Hans-Otto Baral,
22-06-2010 17:20
HiHere is a (cf.) Leptosphaeria on Impatiens noli-tangere stems from N-Germany (Mecklenburg). Torsten Richter made the drawing and I the photos.
We have no idea but did not go deep in the literature.
Zotto
Hans-Otto Baral,
22-06-2010 17:21
Re:Leptosphaeria on Impatiens
The inflation of the apical spore cell is an exception.
The perithecia are distinctly flattened.
The perithecia are distinctly flattened.
Alain GARDIENNET,
22-06-2010 22:16
Re:Leptosphaeria on Impatiens
Hi Zotto,
Are you really sure about the host ?
Alain
Are you really sure about the host ?
Alain
Peter Welt,
22-06-2010 23:13
Re:Leptosphaeria on Impatiens
Hi Zotto,
Warum soll es nicht L. ogilviensis HB 1423 (noch etwas unreif) sein? Betriebsblind (Lach)
Gruß Peter
Warum soll es nicht L. ogilviensis HB 1423 (noch etwas unreif) sein? Betriebsblind (Lach)
Gruß Peter
Hans-Otto Baral,
22-06-2010 23:27
Re:Leptosphaeria on Impatiens
haha, gute Idee, aber die Perithezien sind dort zu konisch, nicht abgeflacht. Und die großen Öltropfen fehlen hier auf Impatiens.
Alain: The substrate Impatiens noli-tangere is absolutely sure, I asked the finder and he says there is no doubt at all.
Zotto
Alain: The substrate Impatiens noli-tangere is absolutely sure, I asked the finder and he says there is no doubt at all.
Zotto
Alain GARDIENNET,
22-06-2010 23:43
Re:Leptosphaeria on Impatiens
I was also looking around L. ogilviensis in seeing L. erigerontis. Ascospores are better than ogilviensis' ones. It has been seen on Aster, Erigeron, Eupatorium....
Alain
Alain
Hans-Otto Baral,
22-06-2010 23:46
Re:Leptosphaeria on Impatiens
Oh, thanks, Alain! Is there any illustration of that species?
Zotto
Zotto
Alain GARDIENNET,
23-06-2010 00:12
Re:Leptosphaeria on Impatiens
I send you description.
Alain
Alain
Martin Bemmann,
23-06-2010 06:14
Re:Leptosphaeria on Impatiens
Hi Zotto and Alain,
Berlese (Icones I, pl. LXXI, 3, descr. p.81) shows L.er. as immerse in host tissue and erumpent through the epidermis, not sessile. Is this a less important feature?
ignorant regards,
Martin
Berlese (Icones I, pl. LXXI, 3, descr. p.81) shows L.er. as immerse in host tissue and erumpent through the epidermis, not sessile. Is this a less important feature?
ignorant regards,
Martin
Alain GARDIENNET,
23-06-2010 07:48
Re:Leptosphaeria on Impatiens
Hi Martin,
I don't know really. But with the example of L. acuta, this one starts immersed and generally we discover it without the periderm of Urtica whichone disappear quickly. Perhaps it's possible.
Alain
I don't know really. But with the example of L. acuta, this one starts immersed and generally we discover it without the periderm of Urtica whichone disappear quickly. Perhaps it's possible.
Alain
Peter Welt,
23-06-2010 09:26
Re:Leptosphaeria on Impatiens
Question in the round:
Is there a fundamental work on Leptosphaeria? The index lists over 1,600 names, and will remain after deduction of the synonyms Maybe left over 1000 names. In the wonderful book by Berlese (for me a unique work of Pyrenomycetes) many species are so close together that I can not believe that there really so many species exist.
Peter
Is there a fundamental work on Leptosphaeria? The index lists over 1,600 names, and will remain after deduction of the synonyms Maybe left over 1000 names. In the wonderful book by Berlese (for me a unique work of Pyrenomycetes) many species are so close together that I can not believe that there really so many species exist.
Peter
Hans-Otto Baral,
23-06-2010 12:09
Re:Leptosphaeria on Impatiens
many thanks!
The perithecia look superficial but there are a few which seem to bhe young ones, and these are clearly erumpent. Whether the epidermis is gone I am not sure.
Zotto
The perithecia look superficial but there are a few which seem to bhe young ones, and these are clearly erumpent. Whether the epidermis is gone I am not sure.
Zotto
Hermine Lotz-Winter,
23-06-2010 12:14
Re:Leptosphaeria on Impatiens
Hello,
the only fundamental work which I have, is the dissertation of Müller from 1950. I attach it for those who are interested.
Hermine, who also finds Leptosphaeria constantly and puts them aside most of the time, because the day has only 24 hours :-(
the only fundamental work which I have, is the dissertation of Müller from 1950. I attach it for those who are interested.
Hermine, who also finds Leptosphaeria constantly and puts them aside most of the time, because the day has only 24 hours :-(
12102.pdf
Alain GARDIENNET,
23-06-2010 13:07
Re:Leptosphaeria on Impatiens
Leptosphaeria erigerontis in Berlese is not the same that in Holm & Holm (problem with the septs).
Zotto's leptosphaeria is closed to this last one (in ogiilviensis' group)
Holm & Holm "Pleosporacées et Lophiostomatacées" is also a good work (in french).
Alain
Zotto's leptosphaeria is closed to this last one (in ogiilviensis' group)
Holm & Holm "Pleosporacées et Lophiostomatacées" is also a good work (in french).
Alain
Peter Welt,
23-06-2010 13:42
Re:Leptosphaeria on Impatiens
Danke Hermine,
ich hatte nur die Ophiobolus Arbeit von Müller.
Liebe Grüße Peter
ich hatte nur die Ophiobolus Arbeit von Müller.
Liebe Grüße Peter
Jean-Pierre Lafont,
23-06-2010 14:19
Re:Leptosphaeria on Impatiens
Bonjour Alain
Peux-tu donner plus de détails sur la publication de Holm & Holm que tu cites?
Merci d'avance, avec toute mon amitié
JP
Peux-tu donner plus de détails sur la publication de Holm & Holm que tu cites?
Merci d'avance, avec toute mon amitié
JP
Alain GARDIENNET,
23-06-2010 14:24
Re:Leptosphaeria on Impatiens
Salut Jean-Pierre,
En fait c'est signé de Lennart Holm (uniquement)
Il s'agit de ses "Etudes taxonomiques sur les Pleosporacées" éditée en 1957 à Uppsala : Symbolae Botanicae Uppsalienses XIV : 3
Je n'en ai qu'une version papier reliée (photocopie). Je le numériserai un jour ; en attendant je peux scanner tout le nécessaire.
Amitiés,
Alain
En fait c'est signé de Lennart Holm (uniquement)
Il s'agit de ses "Etudes taxonomiques sur les Pleosporacées" éditée en 1957 à Uppsala : Symbolae Botanicae Uppsalienses XIV : 3
Je n'en ai qu'une version papier reliée (photocopie). Je le numériserai un jour ; en attendant je peux scanner tout le nécessaire.
Amitiés,
Alain
Christian Lechat,
23-06-2010 14:53
Re:Leptosphaeria on Impatiens
There is a more recent publication: Canadian and some extralimital Leptosphaeria species. RA Shoemaker Canadian Journal of Botany 62:1212, 2688-2729, 1984
Christian
Christian
Jean-Pierre Lafont,
23-06-2010 19:08
Re:Leptosphaeria on Impatiens
Merci Alain, OK, j'avais déjà la référence, mais hélas pas la revue.
Amitiés
JP
Amitiés
JP