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Mot de passe perdu? S'inscrire

17-07-2024 22:37

Peter Welt Peter Welt

Who can help? Arx, J.A. von. 1973. Ostiolate and

16-07-2024 18:32

Andgelo Mombert Andgelo Mombert

Bonsoir, Un discomycète sur Liochlaena lanceolat

17-07-2024 16:29

Andgelo Mombert Andgelo Mombert

Hello,A colleague found an unknown fungus on the s

17-07-2024 10:53

Hans-Otto Baral Hans-Otto Baral

I have a question about the scaling of illustratio

17-07-2024 08:35

Peter Welt Peter Welt

Who can help? Malloch, D.; Hubart, J.-M. 1987. An

17-07-2024 11:33

Angel Pintos Angel Pintos

Hello, anybody body has:Pande A. and Rao, V.G. (1

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

24-08-2020 13:00

Yulia Lytvynenko Yulia Lytvynenko

Dear friends.Looking for a copy of the following w

11-07-2024 14:29

Viktorie Halasu Viktorie Halasu

Hello, a thin-fleshed Mollisia on a monocot stem

15-07-2024 10:38

Joaquin Martin

Hi, I found this Ascobolus in company of Cheilyme

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Sur feuille de Hedera helix
Pablo Chacón, 01-04-2009 22:05
Pablo ChacónJe ne me décide pas par un type, trouvée en feuille de Hedera helix, à trois occasions.

Ascocarpo Disciforme, marrón ocre. Stipite large, noir a la base, no sclerocio.

Spores bigutules hialines, 8-10x3 microns
Ascas amiliodes avec lugol et NaOH, sans hidroxid, non amiliode ou très peu amiloide.70-80x8-9 microns.
Courts cheveux dans la partie extérieure de l'apothecio,cloisone arrondis dans l'apex et les longueurs cylindrique.
Cellules excipulo sphériques.

Je pense Ciboria, mais non rencontre rien dans la bibliographie en Hedera helix.


Salutacions

Pablo

  • message #7305
Pablo Chacón, 01-04-2009 22:10
Pablo Chacón
Re:Sur feuille de Hedera helix
Hair
  • message #7306
Pablo Chacón, 01-04-2009 22:12
Pablo Chacón
Re:Sur feuille de Hedera helix
hairs 2
  • message #7307
Hans-Otto Baral, 01-04-2009 22:16
Hans-Otto Baral
Re:Sur feuille de Hedera helix
Hi Pablo

very interesting! The only species I associate with this is Moellerodiscus lentus. But to confirm I need to see the spores. How large are the apos in diameter? The living paraphyses: do they contain a yellowish-brownish sap? Important: do the asci arise from croziers?

The species appears to be polyphagous. The one I saw was on Populus leaves.

Zotto
Pablo Chacón, 01-04-2009 22:24
Pablo Chacón
Re:Sur feuille de Hedera helix
Ascas, parafisis
  • message #7309
Pablo Chacón, 01-04-2009 22:25
Pablo Chacón
Re:Sur feuille de Hedera helix
Spores
  • message #7310
Pablo Chacón, 01-04-2009 22:33
Pablo Chacón
Re:Sur feuille de Hedera helix
Hi Zotto,

size apothecio, is 2-5 mm diameter

I think that if croziers, bases of ascus
  • message #7311
Pablo Chacón, 01-04-2009 22:39
Pablo Chacón
Re:Sur feuille de Hedera helix
.
  • message #7312
Gilbert MOYNE, 01-04-2009 23:07
Re:Sur feuille de Hedera helix

Peut-être Pycnopeziza sejournei ?
Gilbert
René Dougoud, 02-04-2009 06:51
Re:Sur feuille de Hedera helix
Cher Collègue,

Je vous réponds depuis mon bureau (job) et donc sans avoir la possibilité de contrôler ce que je vous propose, à savoir de contrôler s'il ne s'agirait pas de Pycnopeziza sejournei ?

Cordialement

René
Hans-Otto Baral, 02-04-2009 08:50
Hans-Otto Baral
Re:Sur feuille de Hedera helix
Dear Gilbert & René

I also considered this possibility but the spores of Pycnopeziza sejournei are much wider: 9-13 x 4-5 µm. Also the apothecia have short and thick stalks, and the asci are strongly blue in Lugol.

Zotto
Pablo Chacón, 02-04-2009 19:55
Pablo Chacón
Re:Sur feuille de Hedera helix
DHello friendly

Encounter a small amount of parafisis Yellow color.
Abundant base of ascas and croziers.
Esporas, many small gutulas poligutuladas in the poles.
  • message #7323
Pablo Chacón, 02-04-2009 19:55
Pablo Chacón
Re:Sur feuille de Hedera helix
paráfisis and spores
  • message #7324
Hans-Otto Baral, 02-04-2009 20:42
Hans-Otto Baral
Re:Sur feuille de Hedera helix
thanks for your very good images. I understand that the red ones are in aqueous Congo red.

So spore shape and guttules, as well as croziers indicate that this is conspecific with my find from W-France on Populus leaves. We have made a culture of this find and hope that a sequence will be gained from it, because M. lentus is obviously a complex of different species, involving some without croziers.

Here some pics of the Populus specimen. Apothecia 1.2-1.5 mm diam, stipe 1.5-3 mm, exterior in the field distinctly light yellow-chlorinaceous, under bino more brownish-yellowish
  • message #7325
Hans-Otto Baral, 02-04-2009 20:43
Hans-Otto Baral
Re:Sur feuille de Hedera helix
Some paraphyses with amber-brown vacuoles
  • message #7326
Hans-Otto Baral, 02-04-2009 20:45
Hans-Otto Baral
Re:Sur feuille de Hedera helix
Asci only weakly amyloid. Hairs somewhat capitate. I think the spores fit very well. Size: *9.3-10.5 x 2.8-3.4 µm
  • message #7327
Pablo Chacón, 02-04-2009 21:21
Pablo Chacón
Re:Sur feuille de Hedera helix
Dear Zotto,

Where I can find information on I generate Moellerodiscus and pycnopeziza?

Thank you very much
Hans-Otto Baral, 02-04-2009 21:30
Hans-Otto Baral
Re:Sur feuille de Hedera helix
I think for a first approach you should consult the key by Schumacher & Holst-Jensen.

http://biologi.uio.no/bot/ascomycetes/Sclero.key.html

Pycnopeziza sejournei is well described in Boudier (Icones, p. 282). It was also trated by Häffner (1984, Beitr. Kennt. Pilze Mitteleur. 1: 133.142)

Moellerodiscus was treated by Dumont (1976: 234, Mycologia 68) and Zhuang (1989: 305, Mycotaxon 35).

Zotto
Pablo Chacón, 02-04-2009 21:34
Pablo Chacón
Re:Sur feuille de Hedera helix

Hi Zotto,

Thank you very much