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07-05-2024 00:04

tiny black gelatinous ascos

Ethan Crenson

A friend found these black gelatnous cups on a twi

06-05-2024 08:27

Blasco Rafael

Blasco Rafael

Hola Buenos días.Alguno de ustedes tiene disponib

06-05-2024 10:02

Unknown perithecia on Osmunda!

François Bartholomeeusen

Good morning,At the end of an excursion in De Zegg

05-05-2024 12:55

Sylvie Le Goff

Bonjour Peut on dire que les poils soient vitreux?

05-05-2024 09:59

Anamorph on Carpinus bark

Gernot Friebes

Hello,I failed to identify this anamorph, which gr

19-04-2015 20:20

Literature aide on Pirottaea

Enrique Rubio

Enrique Rubio

Hi again Could you help me with this paper? NANN

30-04-2024 16:22

Could this be Ciborinia pseudobifrons?

François Bartholomeeusen

Dear forum members,On April 25 2024, I found one f

03-05-2024 18:04

Rutstroemia fruticeti?

Riet van Oosten

Riet van Oosten

Hello, Found by Laurens van der Linde on Rubus fr

02-05-2024 20:04

Hypoxylon fuscum

Ã©ric ROMERO

éric ROMERO

Bonjour, Une question à propos de la réaction a

01-05-2024 23:22

long-necked anamorph embedded in wood

Ethan Crenson

Hi all, Found late last week in a New York City p

Peziza on woodchip (Rhododendron)

Pollard Adam, 08-06-2015 22:02

Bonsoir!

Can anyone help ID this Peziza please?
Spores are smooth 15-18 x 9-10µm. No guttules.
Asci only blue at very tip in Melzers.
Paraphyses slender, sparse and fragile. Simple, and septate with slightly inflated ends.
The brian Spooner key takes me to P.micropus, except these fruit bodies were very large (up to 150mm diameter)

Nicolas VAN VOOREN, 08-06-2015 22:52

Nicolas VAN VOOREN

Re : Peziza on woodchip (Rhododendron)

In my opinion, the best option is P. varia, but it would be useful to see content of paraphyses (in water) and to provide information on the structure of the flesh.

Michael Beug, 09-06-2015 02:16

Michael Beug

Re : Peziza on woodchip (Rhododendron)

I agree, your Peziza is certainly consistent with Peziza varia. With P. varia the lower and middle cells of the septate paraphyses can be up to 20 microns wide in a high moisture environment. The apical tips are slender and slightly clavate.

Lothar Krieglsteiner, 09-06-2015 08:10

Lothar Krieglsteiner

Re : Peziza on woodchip (Rhododendron)

Hello Nicolas,
can you explain or tell me literature on the complex Varia - repanda, cerea incl. muralis and micropus are difficult to separate and maybe the same. Where can I learn more?
Regards from Lothar (I fear I am not fully actual here ...)

François Valade, 09-06-2015 11:30

FranÃ§ois Valade

Re : Peziza on woodchip (Rhododendron)

Hello Lothar
here is the link to Karen Hansen's publication
http://dash.harvard.edu/bitstream/handle/1/3153301/Pfister_PhylogeneticDiversityCore.pdf?sequence=1
François

Lothar Krieglsteiner, 09-06-2015 11:39

Lothar Krieglsteiner

Re : Peziza on woodchip (Rhododendron)

thank you very much!

I always thought that it is highly arbitrary to divide the varia-complex. Very nice!

Best regards from Lothar

Lothar Krieglsteiner, 09-06-2015 11:39

Lothar Krieglsteiner

Re : Peziza on woodchip (Rhododendron)

thank you very much!

I always thought that it is highly arbitrary to divide the varia-complex. Very nice!

Best regards from Lothar

Pollard Adam, 09-06-2015 12:19

Re : Peziza on woodchip (Rhododendron)

Thanks / Merci to your help! Perhaps it was hard to see in the photos, but none of the paraphyses were swollen except the tips. This is why I ruled out P.varia as I assume monoliliform refers to swelling away from the tip.

Lothar Krieglsteiner, 09-06-2015 12:59

Lothar Krieglsteiner

Re : Peziza on woodchip (Rhododendron)

.. yes, the "old" P. varia ss. str. was defined with moliniform paraphyses. But this character, as others, seems to be highly variable and influenced by environmental conditions.

Regards from Lothar