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24-07-2024 13:19
Thomas FlammerI am looking for a PDF of the above article. Thank
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21-07-2024 10:13
![Thierry Blondelle](/uploads/user_vgn/-0211.jpg)
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![Alan Rockefeller](/uploads/user_vgn/-0063.jpg)
Which Peziza did I find on horse dung in Humboldt
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![Miguel Ãngel Ribes](/uploads/user_vgn/Ribes-0001.jpg)
Good morningThis Scutellinia from July 9 grew at 1
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21-07-2024 06:23
Masanori KutsunaDear all, Does anyone have these papers and send
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08-07-2024 23:34
Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
Discomycete on cuppue of Fagus
Bernard Declercq,
06-11-2021 16:35
![Bernard Declercq](/uploads/user_vgn/Declercq-0001.jpg)
Collected on cupule of Fagus sylvatica last week:
Apothecia discoid, sessile on a small base, 0.4-0.6 mm diam. bright yellow.
Asci clavate, conical apex, 8-spored, 74-95x11-12 µm, strongly IKI blue, with croziers.
Ascospores fusiform, straight to slightly curved, 19-24x2.5-3 µm, 1(-3)-septate, constricted at the middle septum, OCI 0-1, smooth, hyaline.
Paraphyses with elongate refractive body, 2-3 µm diam., apex covered by bright yellow exudate.
Ectal excipulum composed of subglobose cells, which become more elongated towards the margin, cells covered by bright yellow exudate.
Your help would be appreciated.
Bernard
Viktorie Halasu,
06-11-2021 17:39
![Viktorie Halasu](/uploads/user_vgn/Halasu-0001.jpg)
Re : Discomycete on cuppue of Fagus
Hello,
interesting, could it be related to Zotto's Calycina "aesculi"?
Viktorie
interesting, could it be related to Zotto's Calycina "aesculi"?
Viktorie
Hans-Otto Baral,
06-11-2021 18:12
![Hans-Otto Baral](/uploads/user_vgn/Baral-0001.jpg)
Re : Discomycete on cuppue of Fagus
Hi Bernard
this yellow pigment strongly reminds me of Luteodiscus on mosses! Did you try KOH on it? Luteodiscus turns distinctly pink under the mic. or macroscopically.
Calycina aesculi is a white fungus and has VBs in the paraphyses. This one appears to lack VBs.
Zotto
Bernard Declercq,
07-11-2021 09:45
![Bernard Declercq](/uploads/user_vgn/Declercq-0001.jpg)
Re : Discomycete on cuppue of Fagus
Hi Viktorie and Zotto,
Thanks for your prompt answer.
Indeed, the apothecia turn reddish rose in KOH 10%. Moreover, the apothecia are reddissh brown once dry (without KOH pretreatment).
Zotto, do you have aby literature about Luteodiscus, genus I do not know?
Best regards,
Bernard
Thanks for your prompt answer.
Indeed, the apothecia turn reddish rose in KOH 10%. Moreover, the apothecia are reddissh brown once dry (without KOH pretreatment).
Zotto, do you have aby literature about Luteodiscus, genus I do not know?
Best regards,
Bernard
Hans-Otto Baral,
07-11-2021 10:12
![Hans-Otto Baral](/uploads/user_vgn/Baral-0001.jpg)
Re : Discomycete on cuppue of Fagus
Good ascus photo! On the macro I cannot see clearly the colours, but it is very interesting that you could confirm this rfeaction!
The genus is undescribed as are the two species in it. This is highly astonishing since the fungus is frequent. I must admit I never found it myself, but the reason is that it prefers acidic rocks.
You can find numerous images in my Hyaloscyphaceae folder under Luteodiscus.
Peter Döbbeler detected the fungus in many herbarium specimens but also he is unaware of a description.
So your collection would be the first on a non-bryophyte substrate! And it is clearly a different species with larger asci and spores.
How many apos do you have and would it be possible to collect more?
Zotto