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28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

25-03-2024 14:08

Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

25-03-2024 03:56

B Shelbourne B Shelbourne

• Scuttelinia: Macro and habitat.• S. scutella

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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)

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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
François 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