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09-07-2020 00:39

Valencia Lopez Francisco Javier

Hola a todosEncontré este curioso ascomycete a me

07-07-2020 13:34

Markov Sergey

I found this peziza sp. on loamy soil - on the gro

08-07-2020 19:01

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Je ne remets plus la main sur mon tiré-à

08-07-2020 20:29

Juuso Äikäs

These were growing on a dead grass stalk in a fore

08-07-2020 16:47

Chris Yeates Chris Yeates

Bonjour tous While searching for the downy mildew

08-07-2020 18:21

Castillo Joseba Castillo Joseba

me mandan el material seco recolectado en mdera si

08-07-2020 10:59

Joanne Taylor

Hi there,Does anyone have a copy of the following

07-07-2020 21:07

Lieve Deceuninck Lieve Deceuninck

Dear members of this forumCould this find be Cheil

08-07-2020 16:41

Thomas Læssøe

Suggestions on this one would be very welcomesee:

06-07-2020 17:11

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

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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!