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
Small ASCO on Populus wood?
Mirek Gryc,
03-02-2020 14:18
Sporocarps very small, therefore macro photos from under the microscope.
Has two types of hair.
Marginal, long without content.
At the bottom of the fruiting body shorter but with contents in the upper part, visible in both H2O and Lugol.
I have no idea again.
Mirek
Kosonen Timo,
03-02-2020 14:23
Re : Small ASCO on Populus wood?
Olla transiens.
--Bernard Clesse made a collection (in 2018 I think) of species that had very weakly glassy hair tips. Looked more like a Hyaloscypha. It turned out to be Olla aff. transiens. But somewhat different genetically. But this one looks like a straightforward transiens.
Timo
Mirek Gryc,
03-02-2020 14:40
Re : Small ASCO on Populus wood?
Hi Timo
Because of this characteristic hair, I was looking through "Olla" folder yesterday on the Zotto disc but found nothing. Only the "SPAIN" collection was somewhat similar but had much narrower spores.
Thank you and best regards
Mirek
Mirek
Kosonen Timo,
03-02-2020 14:50
Re : Small ASCO on Populus wood?
check Protounguicularia transiens. ...but Olla is the correct name :-)
T
Hans-Otto Baral,
03-02-2020 15:14
Re : Small ASCO on Populus wood?
I agree, but I think Olla is not the correct name. At the moment I have the species in the Hyaloscypha folder, because the phylogenetic support for this species is with Hyaloscypha leuconica. However, that species was transferred to Hyalopeziza based on genetics from Japanese samples. Oddly enough, the similar H. leuc. var. bulbopilosa clustered with Hyaloscypha (also from Japan). I have no European data to verify this, perhaps Timo has.
Zotto
Kosonen Timo,
03-02-2020 15:14
Re : Small ASCO on Populus wood?
should be out soon.
t
Kosonen Timo,
03-02-2020 15:30
Re : Small ASCO on Populus wood?
...but it is indeed a somewhat messy spot in the Helotiales systematics.
t