04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
28-10-2025 15:37
Carl FarmerI'd be grateful for any suggestions for this strik
03-11-2025 16:30
Hans-Otto Baral
Hello I want to ask you if you have found this ye
Black with Quercus?
Mirek Gryc,
09-04-2021 18:44
Probably anamorph but I have never seen so big conidiophores.
Do you have any ideas?
greetings
Mirek
Enrique Rubio,
09-04-2021 18:59
Re : Black with Quercus?
If the asci are polysporous and the ascospores recurved could be Diatrypella quercina. But I could not well the ascospores inside the asci.
Mirek Gryc,
09-04-2021 20:21
Re : Black with Quercus?
Hi Enrique
In the last photo, it's not asci.
This looks rather on conidiphores which length is greater than 50µm.
I made a few more photos:
Mirek
In the last photo, it's not asci.
This looks rather on conidiphores which length is greater than 50µm.
I made a few more photos:
Mirek
Enrique Rubio,
09-04-2021 20:28
Re : Black with Quercus?
Hi
I think these are only inmature asci. I think you should wait
I think these are only inmature asci. I think you should wait
Mirek Gryc,
09-04-2021 20:48
Re : Black with Quercus?
In that case, it means that I have never studied so young Diatrypella :)
I will stop branches for further observation.
Thank you
Mirek
I will stop branches for further observation.
Thank you
Mirek
Enrique Rubio,
09-04-2021 20:58
Re : Black with Quercus?
I may be wrong but that's my idea of your fungus, Mirek. Such stromata and their occurrence on Quercus are also typical of Diatrypella quercina.
Mirek Gryc,
13-04-2021 13:43
Re : Black with Quercus?
Hi Enrique
I have not read yet, I will leave myself for an evening but it seems to me that I found a response :)
Botryosphaeria?
https://www.researchgate.net/publication/259155846_The_Botryosphaeriaceae_Genera_and_species_known_from_culture
greetings
Mirek
I have not read yet, I will leave myself for an evening but it seems to me that I found a response :)
Botryosphaeria?
https://www.researchgate.net/publication/259155846_The_Botryosphaeriaceae_Genera_and_species_known_from_culture
greetings
Mirek
Enrique Rubio,
13-04-2021 13:53
Re : Black with Quercus?
You should keep trying to study what the mature spores look like, I don't think it can be a Botryosphaeriales even though your thin section of the stroma may simulate it.
Mirek Gryc,
13-04-2021 15:08
Re : Black with Quercus?
It is not only guided by the appearance of spores, I am looking for a logical solution for my collection. Because you suggested Diatripella and the microscopic structure does not suit her, so I was looking for something about more similar features.
He realizes that here, in turn, macroscopic features do not fit.
He realizes that here, in turn, macroscopic features do not fit.
Of course, I mean anamorf.
For sure, my collection is none of the presented species because conidiophores my collection is much longer than the species shown.
Enrique Rubio,
14-04-2021 11:14
Re : Black with Quercus?
Forgive me, but it seems impossible to try to determine an ascomycete without at least knowing what the asci and spores are. I don't think you should start building the house from the roof up.
Mirek Gryc,
14-04-2021 11:57
Re : Black with Quercus?
Hi Enrique
Not everyone has such a huge knowledge and experience as you. When, you also started your adventure with mushrooms and you did not have such knowledge as now, you certainly tried different ways.
If you claim that these are ASCI I will not protest. I do not have such a lot of experience as you, but I think I am on such a level that I can distinguish them from spores.
Have a nice day
Not everyone has such a huge knowledge and experience as you. When, you also started your adventure with mushrooms and you did not have such knowledge as now, you certainly tried different ways.
If you claim that these are ASCI I will not protest. I do not have such a lot of experience as you, but I think I am on such a level that I can distinguish them from spores.
Have a nice day
Mirek
EDIT:
I have to add a few words of explanations.
Forgive me if I accidentally offended, I did not have this intention.
My English basically does not exist so I use a translator.
The translator is very useful, but still very much missing for excellence :(
Mirek
Forgive me if I accidentally offended, I did not have this intention.
My English basically does not exist so I use a translator.
The translator is very useful, but still very much missing for excellence :(
Mirek
Enrique Rubio,
14-04-2021 12:27
Re : Black with Quercus?
Hi Mirek
We never have enough experience to know everything, and in fact I may be wrong, but what I do know is that in order to study something we have to have accurate data and in your case we do not.
Best regards
We never have enough experience to know everything, and in fact I may be wrong, but what I do know is that in order to study something we have to have accurate data and in your case we do not.
Best regards
Jaklitsch Walter,
14-04-2021 19:12
Re : Black with Quercus?
I would suggest Melanops tulasnei, if the conidia are aseptate and (37.2–)45–46.8(–53) × (7.2–)9.1–9.7 (–12.1) ?m.
Cheers, Walter
PS: See Phillips & Alves (2009): Taxonomy, phylogeny, and epitypification of Melanops tulasnei, the type species of Melanops. Fungal Divers. 38 155–166
The fungus is also known as Botryosphaeria melanops.
Enrique Rubio,
14-04-2021 19:20
Re : Black with Quercus?
Yes, Walter (and Mirek) are right. Melanops tulasnei (Botryosphaeriales) is a good solution.
Mirek Gryc,
17-04-2021 10:08
Re : Black with Quercus?
Hello everyone
It lasted a bit but I had to be sure that I study ascomata fully mature. I kept the collection in a damp room.
Yesterday they appeared on the surface of Ascomata free conidiophores.
I made two more conidiophores measurements.
1) Downloaded from ascomata
(48.7) 51.5 - 64.3 (69) × (8.1) 9.2 - 11.1 (11.2) µm
Q = (4.6) 4.8 - 6.6 (8.5); N = 33
Me = 56.1 × 10.2 µm; QE = 5.5
It lasted a bit but I had to be sure that I study ascomata fully mature. I kept the collection in a damp room.
Yesterday they appeared on the surface of Ascomata free conidiophores.
I made two more conidiophores measurements.
1) Downloaded from ascomata
(48.7) 51.5 - 64.3 (69) × (8.1) 9.2 - 11.1 (11.2) µm
Q = (4.6) 4.8 - 6.6 (8.5); N = 33
Me = 56.1 × 10.2 µm; QE = 5.5
2) Free conidiophores
(58) 58.4 - 68 (70.5) × (11.3) 11.32 - 13.27 (13.3) µm
Q = (4.6) 4.61 - 5.8 (5.9); N = 14
Me = 63.8 × 12.3 µm; Qe = 5.2
As you can see their sizes, they do not match the species mentioned.
The Chinese described two other species with larger conidiophores than Melanops tulasnei. One of Quercus but with even larger conidiophores than in my collection.
I'm sorry, but unfortunately remain as Melanops sp.
Thank you all for valuable comments
greetings
Mirek