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14-08-2022 18:08

Edvin Johannesen Edvin Johannesen

Found on deciduous wood (probably Betula) in subal

14-08-2022 15:50

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,this Orbilia grew on a strongly rotten branc

13-08-2022 17:18

Stephen Mifsud Stephen Mifsud

I assumed these are weak colonies of Neurospora on

10-08-2022 15:45

Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

04-07-2022 18:45

Enrique Rubio Enrique Rubio

I can find no suitable answer for this white Bryos

11-08-2022 00:45

Stefan Jakobsson

On a thin deciduous stick (Salix/Alnus/Betula) on

10-08-2022 18:45

François Bartholomeeusen

Good evening all, On 5 August 2022, a friend gave

11-08-2022 08:16

Josep Torres Josep Torres

Hola.Un muy diminuto Pirenomyceto sobre un tronco

10-08-2022 09:11

Josep Torres Josep Torres

Hola.Un Piremomyceto recogido este pasado domingo

09-08-2022 20:06

Stephen Mifsud Stephen Mifsud

I have found an interesting aspergillus on flowers

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Hyphodiscus on Cupressus leaves
Enrique Rubio, 07-02-2014 21:10
Enrique Rubio

Hi to everybody


Few days ago I have collected several hundreds of these gregarious, white, cup-shaped, downy, shortly stipitate to subturbinate, minute (up to 0.4 mm in diameter) ascomata on very rotten leaves of Cupressus.


The asci, up to 45 x 7 microns, have an apical pore IKI b (sometimes hardly visible) and they have croziers. The paraphyses and the excipular hairs  have conspicuous Vb's that stain cresyl blue. The excipulum is slightly gelatinised. Hairs long cylindrical, hyaline, full lenght incrusted by a granulose matter or simply verrucose (?).


All these characters seem to match with the genus Hyphodiscus, but I don't know some species that fits well with my collection.


Some idea?


Thanks again

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Michel Hairaud, 07-02-2014 21:25
Michel Hairaud
Re : Hyphodiscus on Cupressus leaves
Hi ENrique, 

How about a Ciliolarina ?
But I would not give a species name ?

Very nice macro and micro pics !

Amitiés
Michel
Stip Helleman, 07-02-2014 21:57
Stip Helleman
Re : Hyphodiscus on Cupressus leaves
Hi Enrique,
it looks like a species I did collect a few times on Chamaecyparis? sp and Juniperus sp in a tree nursery t I tentatively call Hyphodiscus / Calycina (Pezizella junipericola (Velen.) Svrcek

cheers,
Stip
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Hans-Otto Baral, 07-02-2014 22:20
Hans-Otto Baral
Re : Hyphodiscus on Cupressus leaves
yes, Stip, undoubtedly the same as you studied. Enrique, you find it in my folder Calycina white (yes!), and I still believe it is closely related to C. gemmarum, both having warted hairs and 4 smaller spores. For the latter Raitviir erected the genus Gemmina. I am not sure whether this is justified, because I think if the hairs were smooth then it would be a typical Calycina. But who knows....

Zotto
Enrique Rubio, 08-02-2014 17:55
Enrique Rubio
Re : Hyphodiscus on Cupressus leaves
Many thanks to Michel, Stip and Zotto!