31-07-2021 20:39
Stefan JakobssonOn the verge of a forest rivulet I found an Ombrop
31-07-2021 23:33
Wilhelm Guggisberg
This 20 um, barreled shape, beer keg-like ascospor
01-08-2021 10:00
BERNARD CLESSE
Bonjour à toutes et à tous,Un ami m'envoie ces d
29-07-2021 23:25
Ethan CrensonHi all, This is a parasite I found on fruiting bo
31-07-2021 12:42
Edvin Johannesen
These less than 1 mm apos were growing on Salix ca
30-07-2021 18:42
Franz Berger
I am searching for an appropriate genus (Biatorell
28-07-2021 15:26
Jennifer FiorentinoWould be very happy to receive your opinion on thi
30-07-2021 00:01
Philippe Larue
Bonsoir à tous, Un sujet récent sur notre forum
Appel au don
Ascofrance a besoin de vous pour continuer à se développer, votre don assurera sa viabilité.
Appel au don
found yesterday near Stuttgart (Ludwigsburg-Poppenweiler, "Zipfelbachtal") on a twig of deciduous wood (likely Fraxinus).
The asci are without crozieres, 8-spored, and IKI-positive (blue, Calycina-type). The paraphyses and the marginal cells of the excipulum contain very conspicuous vacuolar bodies. The spores are multiguttulate when alive, about 21-26/5,5-7 µm large. subfusiform. The excipulum is of prismatic cells with interspace.
Can somebody provide me with a hint?
Regards and best wishes for 2016 to everybody,
from Lothar
I have no idea yet. How large atre the apos or how thick the branch? Fraxinus is quite easily recognizable.
Allophylaria macrospora could be a possibility although the partly larger oil drops are irritating.
A photo of the apical ring in IKI (in the dead state) could be helpful. Are the apos short-stalked?
Zotto
Hi Zotto,
thank you very much for your first opinion. I will do a dead stain of the ascus tomorrow - unfortunately today I won`t have time any more. But I have kept the material alive in a box. For the moment I add two fotos of the IKI in living ascus apices.
Allophylaria could be a good idea in fact. The apothecia (small, I guess about 0,5 mm when larger) have very short but distinct stalks.
Best regards from Lothar
... I forgot: the branch is quite thin, a bit more than 1 cm thick.
Regards Lothar
... and: the spore-drops are confluent to large bodies when they die (what else should they do ....) and in most spores I saw (especially in turgescent asci) they contained only small to very small guttules. The spores in the one picture may have begun to degrade already ...
Regards Lothar