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Heterosphaeria patella 230614
Miguel Ángel Ribes,
05-08-2014 10:24
Goog morning friendsThis 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
Hans-Otto Baral,
05-08-2014 11:11
Re : Heterosphaeria patella 230614
Hi Miguel
did you test the Leuchtmann key?
Zotto
did you test the Leuchtmann key?
Zotto
Miguel Ángel Ribes,
05-08-2014 11:58
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
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
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).
Miguel Ángel Ribes,
06-08-2014 13:32
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
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
Hans-Otto Baral,
06-08-2014 16:34
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!
Miguel Ángel Ribes,
06-08-2014 18:41
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
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
Hans-Otto Baral,
06-08-2014 21:31
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
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.
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
Re : Heterosphaeria patella 230614
I consider this period of time as sufficient :-)
Miguel Ángel Ribes,
11-08-2014 23:11
Re : Heterosphaeria patella 230614
Ok, we must wait next time to find and study it again.
Thanks.
Thanks.
Blasco Rafael,
11-06-2015 00:24
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
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
Miguel Ángel Ribes,
11-06-2015 00:34
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.
Suerte.
Hans-Otto Baral,
11-06-2015 08:26
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-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
Re : Heterosphaeria patella 230614
Thank you Zotto
I hope this species will be found again in the living status this year.
Best wishes
I hope this species will be found again in the living status this year.
Best wishes
Bernard Declercq,
18-02-2018 19:26
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
The conidia with the whip-like appendages belong to the sclerotia-like anamorph of Ceriospora polygonaceanum.
Best regards
Bernard Declercq