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Mot de passe perdu? S'inscrire

18-06-2018 13:54

Castillo Joseba Castillo Joseba

Esta posible Peziza en bosque de  piceas,  sobre

18-06-2018 13:56

Castillo Joseba Castillo Joseba

en bosque de abetos,  sobre tierra   ...  A v

18-06-2018 04:55

Andgelo Mombert

Bonsoir,Sur tige morte de Gentiana lutea, en compa

11-06-2018 20:34

Andgelo Mombert

Bonsoir,Sur tige morte de plante, probablement d'A

18-05-2018 18:38

Riet van Oosten Riet van Oosten

Hello,Found 17-05-2018, The Netherlands.On: Phragm

17-06-2018 00:36

Alan Rockefeller Alan Rockefeller

Looks like what is passing for Caloscypha fulgens

14-06-2018 22:33

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toute et tous,Voici un Saccobolus trouv

14-06-2018 12:55

Savic Dragisa

Hi, I need help for this Helvella species. I found

15-06-2018 12:19

Pintos Angel Pintos Angel

anybody can help wiht this?Koskela P (1983) Arthri

15-06-2018 09:45

Yannick Mourgues Yannick Mourgues

Bonjour. Je suis à la recherche de : - Rivista

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Heterosphaeria patella 230614
Miguel Ángel Ribes, 05-08-2014 10:24
Miguel Ãngel RibesGoog morning friends

This small black soft 800-1.200 µm diam. was growing probably on Urtica dioica, at semi-alpine place in a snowfield (nevero). It is young and more or less dead, but I think enough live to identify it.


Hemiamyloid asci, with croziers, elipsoid-cylindrical spores of (9.8) 11.1 - 14.1 (17.1) x (2.8) 3.4 - 4.0 (4.6) µm; Q = (2.8) 2.9 - 3.9 (5.1) ; N = 37; Me = 12.6 x 3.7 µm ; Qe = 3.4


Ectal excipulum brown with textura angularis and hard. Medular excipulum gelatinized and very soft.


Conidial presence.


Thank you in advance for your opinion.


Miguel Á. Ribes

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Hans-Otto Baral, 05-08-2014 11:11
Hans-Otto Baral
Re : Heterosphaeria patella 230614
Hi Miguel

did you test the Leuchtmann key?

Zotto
Miguel Ángel Ribes, 05-08-2014 11:58
Miguel Ãngel Ribes
Re : Heterosphaeria patella 230614
Hi Zotto

Yes, I have check it and I think is the nearest species, but it is the first time I study an Heterosphaeria.

Thank you.

Miguel Á. Ribes
Hans-Otto Baral, 06-08-2014 10:47
Hans-Otto Baral
Re : Heterosphaeria patella 230614
You could try a closeup of the margin in section. The key of Leuchtmann starts with the presence vs. absence of periphysoids (below H. patella which has them).
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Miguel Ángel Ribes, 06-08-2014 13:32
Miguel Ãngel Ribes
Re : Heterosphaeria patella 230614
Ummmm, I didn't make close-up pictures of the margin, but this is the result of crops from my pictures at 200x and 400x. I think is it enough to see the presence of this periphysoids cells, or not?

If so, following Leuchtmann key I arrive H. lojkae, because H. patella has not that bristle-like hyphae, or am I making a bad translation?

Thanks
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Hans-Otto Baral, 06-08-2014 16:34
Hans-Otto Baral
Re : Heterosphaeria patella 230614
You are right, I overlooked this. Only that H. lojkae has too narrow spores (2-3 µm). I suppose that your apothecia get nicely opened and toothed if you rehydrated them for some minutes. These teeth are absent in H. lojkae after his key. The photo below concerns a find with distinct periphysoids, however!
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Miguel Ángel Ribes, 06-08-2014 18:41
Miguel Ãngel Ribes
Re : Heterosphaeria patella 230614
No, all my apos were completly close and without any reaction to the water, I supose all of them were semi-died. I could try it again (now they are completly dried), but I do not hope the opening.

Attached more macro photos. All of them were closed and depressed on the top, none opened.

Any posibility about H. patella has that bristle-like hyphae? Otherwise, I am at a dead end.

Thanks again.

P.D. Have you see the ladder-like perforations of the "Alnus" wood in "Another Mollisia ¿perelegans?" post
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Hans-Otto Baral, 06-08-2014 21:31
Hans-Otto Baral
Re : Heterosphaeria patella 230614
this is strabnge because I thought the opening mechanism works also in dead material. But I might be wrong.
Miguel Ángel Ribes, 11-08-2014 19:43
Miguel Ãngel Ribes
Re : Heterosphaeria patella 230614
Hi again

5 days later "incubating" the sample in a wet location, only small changes are observed, perhaps a little more star-shaped open apothecia, but nothing similar to Zotto's pictures.

Thank you.
Hans-Otto Baral, 11-08-2014 21:28
Hans-Otto Baral
Re : Heterosphaeria patella 230614
I consider this period of time as sufficient :-)
Miguel Ángel Ribes, 11-08-2014 23:11
Miguel Ãngel Ribes
Re : Heterosphaeria patella 230614
Ok, we must wait next time to find and study it again.

Thanks.
Blasco Rafael, 11-06-2015 00:24
Blasco Rafael
Re : Heterosphaeria patella 230614
Hola Miguel Angel y Zotto.
recogi el dia 30-05-15 esta muestra que es la misma que la tuya, Heterosphaeria patella.
despues de quince dias en la nevera y en camara humeda han abierto todos.
Los recogi en tallos de Angelica sylvestris, completamente secos, y al sol, habia cientos,
los tallos que estaban en sombra o algo humedos, no tenian  ninguno,
supongo que quiere insolacion para poder fructificar,
Un saludo
Rafael
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Miguel Ángel Ribes, 11-06-2015 00:34
Miguel Ãngel Ribes
Re : Heterosphaeria patella 230614
Yo los tuve muchísimo tiempo en cámara húmeda y no conseguí que ninguno se abriera, así que se quedó de momento como H. aff patella o lojkae. La macro se parece mucho a lo que yo estudié, la micro no tanto, sobre todo las paráfisis.

Suerte.
Hans-Otto Baral, 11-06-2015 08:26
Hans-Otto Baral
Re : Heterosphaeria patella 230614
very good observation, Rafael! Yes, I suspect that Heterosphaeria is drought.tolerant. Did you make also any micros? - Sorry, overlooked your other posting.

Miguel-Angel: Your pics from last year show dead elements. It was obviously in bad state, for whatever reason. Although i expect that dead apothecia do open similar as living ones, this might be the reason why you were unable to ripen them more properly.

Zotto
Miguel Ángel Ribes, 11-06-2015 09:50
Miguel Ãngel Ribes
Re : Heterosphaeria patella 230614
Thank you Zotto

I hope this species will be found again in the living status this year.

Best wishes
Bernard Declercq, 18-02-2018 19:26
Bernard Declercq
Re : Heterosphaeria patella 230614
Hi Miguel,

The conidia with the whip-like appendages belong to the sclerotia-like anamorph of Ceriospora polygonaceanum.

Best regards

Bernard Declercq