
11-06-2009 22:33

Hello here is a Lophiostoma on Rhamnus alaterna

09-06-2009 22:14
Trouvé aujourd'hui sur un talus thermophile à St

09-06-2009 20:37
Gernot FriebesHello, here is another (the last) Lachnum which

09-06-2009 17:28
Gernot FriebesHello, I found this single apothecium on bark b

09-06-2009 17:21
Roland LabbéBonjour ! Voici un discomycète que nous croyon

09-06-2009 13:33
Dear friends: I'd lke to know your opinion about

09-06-2009 13:17
Dear friends: This Mollisia (?) species grows on
Lophiostoma on Rhamnus alaterna
Hans-Otto Baral,
11-06-2009 22:33

here is a Lophiostoma on Rhamnus alaterna collected by Jean-Paul Priou in Portugal, together with a new Orbilia. Therefore I had a look at it and could not find a name with Holm (Lophiostomaceae of Sweden).
Sp. *(18.5-)20-23(-25) x 7.2-8 µm, 3-5-septate, light ochre-brown (surely so when mature, though no living mature asci seen), very finely & densely punctate, no appendages, dark brown when dead & collapsed.
Zotto
Hans-Otto Baral,
11-06-2009 22:34
Jacques Fournier,
11-06-2009 23:36

Re:Lophiostoma on Rhamnus alaterna
Hi Zotto and Jean Paul,
I think Lophiostoma quadrinucleatum matches this collection fairly well if it is viewed in the broad sense
accepted by Holm & Holm including five septate ascospores. Such spores are also accepted by Mathiassen (1993) for collections on Salix in Norway.
Best wishes,
Jacques
I think Lophiostoma quadrinucleatum matches this collection fairly well if it is viewed in the broad sense
accepted by Holm & Holm including five septate ascospores. Such spores are also accepted by Mathiassen (1993) for collections on Salix in Norway.
Best wishes,
Jacques
Hans-Otto Baral,
12-06-2009 13:17

Re:Lophiostoma on Rhamnus alaterna
Hi Jacques
many thanks! The type of L. quadrinucleatum was even on Rhamnus, but Salix, Prunus and Berberis are also cited in Holm & Holm. I only wonder why the puntation of the spore surface is not mentioned. Perhaps too difficult to see?
Zotto
many thanks! The type of L. quadrinucleatum was even on Rhamnus, but Salix, Prunus and Berberis are also cited in Holm & Holm. I only wonder why the puntation of the spore surface is not mentioned. Perhaps too difficult to see?
Zotto