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Hamatocanthoscypha-like sur Clematis vitalba
Bernard CLESSE,
23-01-2022 23:53
J'ai trouvé récemment cet asco sur tige pourrie de clématite des haies. Les poils me font penser à un Hamatocantoscypha mais y a-t-il une espèce qui vient sur cette plante ou s'agit-il d'un autre genre ?
Merci d'avance pour vos réponses !
Bernard
Kosonen Timo,
24-01-2022 07:41
Re : Hamatocanthoscypha-like sur Clematis vitalba
Salut,
Howabout Unguiculella? Hamatos have curved hairs, but they do not have solidifications - "glassines". Try MLZ and Lugol, they might help here. I dont dare to suggest a species. Zotto has several folders under Unguicuella, start there, check Iridinea also.
Please make good documents & keep the sample.
bw
Timo
Howabout Unguiculella? Hamatos have curved hairs, but they do not have solidifications - "glassines". Try MLZ and Lugol, they might help here. I dont dare to suggest a species. Zotto has several folders under Unguicuella, start there, check Iridinea also.
Please make good documents & keep the sample.
bw
Timo
Hans-Otto Baral,
24-01-2022 08:15
Re : Hamatocanthoscypha-like sur Clematis vitalba
Hi
I see one paraphysis, are they all like this? Important to know if there are hooked paraphyses like the hairs in the hymenium.
Unguiculariopsis would have the microscopic appearance too, but has a brown excipulum. It is strange that it is in Cordieritidaceae. Unguiculella also has usually flexuous hairs, not so regular as here. Hamatocanthoscypha I would also exclude.
Verify two things: Asci are inamyloid? I doubt the simple-septate ascus base, immature asci with adhering basal cell should be checked.
Zotto
Bernard CLESSE,
24-01-2022 08:20
Re : Hamatocanthoscypha-like sur Clematis vitalba
Hello to both of you and thank you very much for your leads. I'm going to check if the asci are amyloid and if the asci have a hook (actually, I was a little hesitant).
Best regards,
Bernard
Best regards,
Bernard
Bernard CLESSE,
24-01-2022 12:49
Kosonen Timo,
24-01-2022 13:04
Re : Hamatocanthoscypha-like sur Clematis vitalba
what about hairs? any LUG/MLZ reaction? ...I assume not :-)
T
T
Bernard CLESSE,
24-01-2022 13:48
Re : Hamatocanthoscypha-like sur Clematis vitalba
Hello Timo ,
I just looked at the hairs in the lugol : no particular reaction
Bernard
Kosonen Timo,
24-01-2022 14:21
Re : Hamatocanthoscypha-like sur Clematis vitalba
ok, that excludes Hyalacrotes ... I dont disagree with Unguiculariopsis.
T
T
Hans-Otto Baral,
24-01-2022 16:00
Re : Hamatocanthoscypha-like sur Clematis vitalba
So your photos 6 + 8 are in water, not Lugol. With such excipular colour I would actually think Unguiculariopsis.
Bernard CLESSE,
24-01-2022 16:13
Re : Hamatocanthoscypha-like sur Clematis vitalba
OK, big thanks to both of you !
Bernard
Bernard