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07-12-2019 22:22

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que hemo

11-12-2019 23:29

Juuso Äikäs

I found these in a Picea abies dominated forest in

11-12-2019 23:25

Ethan Crenson

Hello all,This was found by a friend in New York C

11-12-2019 22:21

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et tous,Pourriez-vous me confirm

09-01-2015 12:57

Alan Rockefeller Alan Rockefeller

I found this in a semitropical area of Queretaro,

05-01-2019 14:57

Edvin Johannesen Edvin Johannesen

These orange "jelly"-like apothecia grow at the ap

11-12-2019 16:42

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,Même s'il ne s'agit pas

05-12-2019 19:35

Ibai Olariaga Ibarguren

Dear colleagues, I was wondering if anyone could

09-12-2019 12:05

PASCAL DUBOC

Bonjour cette colonie de pustules orange sur vieu

09-12-2019 21:35

William Slosse William Slosse

Yesterday I found this species on the underside of

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Mollisina (?) on seeds (samara) of Acer pseudoplatanus
Enrique Rubio, 29-04-2014 18:03
Enrique Rubio

Hi to all


My friend J. Linde, a great discover of minute fungi, collected these small, white, downy, shortly stipitate, briefly cupulate later pulvinate apothecia, 0.3-0.5 mm in diameter on seeds (samara) of Acer pseudoplatanus. 


Thea asci, 8-spored, are IKI negative and with croziers. The spores have only few minute guttules. Excipulum with textura + or - prismatica. The paraphyses are cylindrical, without conspicuous Vb's in water but stain in Crb. Close to the margin they become branched as the excipular hairs (marked with red arrows in the pic).


The very dense excipular hairs have finger-like protuberances as the Mollisina species. I think it could be a Mollisina but I don't know a species that fits well with our fungus.


 


Thanks for your opinion

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Guy Garcia, 29-04-2014 18:23
Re : Mollisina (?) on seeds (samara) of Acer pseudoplatanus
salut Enrique,

As-tu comparé avec Mollisina acerina ?

Amitiés, Guy
Enrique Rubio, 29-04-2014 18:29
Enrique Rubio
Re : Mollisina (?) on seeds (samara) of Acer pseudoplatanus

Salut Guy


My first idea was this species with IKI reddish asci and without croziers (fide Zotto). So I think is not possible.


Thanks

Stip Helleman, 29-04-2014 19:16
Stip Helleman
Re : Mollisina (?) on seeds (samara) of Acer pseudoplatanus
Hi Enrique,
I agree with that species concept although I did note for my acerina collection IKI rb besides in acerina the spores are more ovoid (less pointed than in this collection). The only Mollisina I know with croziers is also undescribed on Pteridium leaves

regards,
Stip
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Enrique Rubio, 29-04-2014 19:39
Enrique Rubio
Re : Mollisina (?) on seeds (samara) of Acer pseudoplatanus
Thanks, Stip. Thanks for your opinion
Hans-Otto Baral, 30-04-2014 21:09
Hans-Otto Baral
Re : Mollisina (?) on seeds (samara) of Acer pseudoplatanus
There is a collection from Chemnitz which fits:

HB 9340, Chemnitz, Acer fruit. Ap. 0.3-0.6 mm diam., whitish, Calycina-like. Sp. cyl.-fusoid-clavate, *5-6.5 x 1.8-2 µm, Ölm.0,5-1. Asci ca. *28-37 x 5-6 µm, IKI 2rb, very dirty red. Hairs on exterior only as cortical cells with many small finger-like outgrowths. Exudate over exterior light golden-yellow.

I suppose it was with croziers, but my photos do not clearly show. I had it in the folder of Stip's one on Pteridium. I have kept the material and hope to reexamine it at some time.

Zotto
Enrique Rubio, 01-05-2014 20:14
Enrique Rubio
Re : Mollisina (?) on seeds (samara) of Acer pseudoplatanus

Hi Zotto


Your HB 9340 fits well but 'my asci' have any reaction in IKI. I'm very sure of it!


Thanks! 

Hans-Otto Baral, 01-05-2014 21:00
Hans-Otto Baral
Re : Mollisina (?) on seeds (samara) of Acer pseudoplatanus
Ah, you mean your asci have no reaction to Lugol. Mine are medium strong first blue then dirty red (= 2rb), I know you understood. Well, Mollisina is another crazy genus....