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Lophiostomataceae
Gernot Friebes,
05-03-2010 18:17
could you please help me with this Pleosporales which I were not able to determine. It grew on a branch of Salix, the ascomata are opening slit-like and slightly immersed. The spores have a thick gel sheath as long as they are hyaline, when they are mature the sheath is gone and the spores are slightly brownish. They have 4-9 septa and are (32)38-51 x (9)9,5-10, the asci are bitunicate and 8-spored.
Best wishes,
Gernot
Gernot Friebes,
05-03-2010 18:18
Re:Lophiostomataceae
micros (scale=10 µm)
Gernot Friebes,
05-03-2010 18:21
Re:Lophiostomataceae
note the sheath
Christian Lechat,
05-03-2010 19:07
Re:Lophiostomataceae
Hi Gernot,
your fungus ressembles to Lophiostoma massarioides (Sacc.) Holm., although Holm does not speak about ascospore with a sheath.
All the best,
Christian
your fungus ressembles to Lophiostoma massarioides (Sacc.) Holm., although Holm does not speak about ascospore with a sheath.
All the best,
Christian
Alain GARDIENNET,
05-03-2010 19:11
Re:Lophiostomataceae
I thought at L. subcorticale (one septate generally ! , it isn't that) but the good proposition is given by Christian.
A very nice recolt.
Alain
A very nice recolt.
Alain
Alain GARDIENNET,
05-03-2010 19:26
Re:Lophiostomataceae
It would be a good idea to see all the descriptions around massarioides, appendiculatum, appendiculatum var littorale and why not alpigenum. Which one has sheath ? which one never has a sheath ? ... Material lacks and your recolt is an important recolt you does keep very carefully.
Alain
Alain
Gernot Friebes,
05-03-2010 20:13
Re:Lophiostomataceae
Hi Christian and Alain,
thank you very much for you help. Unfortunately I don't have any literature on L. massarioides, could you maybe scan me the description by Holm?
Best wishes,
Gernot
thank you very much for you help. Unfortunately I don't have any literature on L. massarioides, could you maybe scan me the description by Holm?
Best wishes,
Gernot
Christian Lechat,
05-03-2010 21:40
10634.jpg
Gernot Friebes,
05-03-2010 22:13
Re:Lophiostomataceae
Hi Christian,
you are great, thank you very much! The description fits quite well and at least they mention that Saccardo reported a sheath, even though Holm & Holm didn't see one. In my collection I could observe a sheath in some ascomata while others didn't have one or very few. I think that a collection with mainly older, mature spores could lack a sheath and maybe it disappears in dead material.
Anyway a very nice find and I'm happy with the outcome!
Best wishes,
Gernot
you are great, thank you very much! The description fits quite well and at least they mention that Saccardo reported a sheath, even though Holm & Holm didn't see one. In my collection I could observe a sheath in some ascomata while others didn't have one or very few. I think that a collection with mainly older, mature spores could lack a sheath and maybe it disappears in dead material.
Anyway a very nice find and I'm happy with the outcome!
Best wishes,
Gernot