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23-09-2018 05:26

xian zhang xian zhang

Hello everyone, Is this specimen Pachyella clypen

21-09-2018 11:57

Vasileios Kaounas Vasileios Kaounas

At the moment I do not have enough data.Just a fri

23-09-2018 22:21

Marc Detollenaere Marc Detollenaere

Good evening, On dead leaves of Ammophila I found

18-09-2018 14:10

Savic Dragisa

Is this Pachyella punctispora? I found it on a dam

23-09-2018 13:36

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Subo unas fotos de una Peziza que e

23-09-2018 14:10

Rubén Martínez Gil Rubén Martínez Gil

Hola a todos. Subo unas fotos de una Peziza que e

24-09-2018 19:12

Castillo Joseba Castillo Joseba

Localizado ayer  en restos de madera de haya quem

21-09-2018 23:44

Edouard Evangelisti Edouard Evangelisti

Bonjour le forum, Pourriez-vous m'aider à confir

13-09-2018 19:17

Marc Detollenaere Marc Detollenaere

Dear forum, Yesterday I found setous fruit bodies

21-09-2018 15:10

Johan Myhrer

Central sweden in a marsh by a shallow lake I foun

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Diaporthale on Geranium
Enrique Rubio, 08-06-2018 18:33
Enrique RubioHi to everyone
This enigmatic diaporthale makes subepidermial, roundish, blackish, up to 250 microns in diam., perithecia with central short beak on overwintered stems of Geranium pratense at the sea level.
Thes short stipitate asci have a conspicuous refractive melzer negative apical apparatus and the non septate ascospores have polar roundish caps at the poles, only visible with chlorazol blak.
I explored keys on Gnomonia-like fungi with no success.Have you some idea for me?
Many thanks in advanceEnrique
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Alain GARDIENNET, 08-06-2018 19:46
Alain GARDIENNET
Re : Diaporthale on Geranium

Hi Enrique,


This amazing fungus is probably new.


Alain

Enrique Rubio, 08-06-2018 20:13
Enrique Rubio
Re : Diaporthale on Geranium
Hi Alain
Could you suggest me a genus?
Enrique Rubio, 08-06-2018 20:15
Enrique Rubio
Re : Diaporthale on Geranium
First, I tought in Apiognomonia, by the spore morphology, but any septa I have seen. Maybe Gnomoniella?
Alain GARDIENNET, 08-06-2018 20:53
Alain GARDIENNET
Re : Diaporthale on Geranium

Yes, because of a pseudoseptum on Melzer-photo, I thought at Apiognomonia too, but is it really a septum ? I don't think. Find the genus is difficult without molecular data, you know . Gnomoniella ? not impossible. I've no more knowledge than you.


Sorry,


Alain

Enrique Rubio, 09-06-2018 00:55
Enrique Rubio
Re : Diaporthale on Geranium
Yes. I tought this was a septum in Melzer's reagent, but since I never saw it again, I didn't think it was really a septum. Even in chlorazol black it never showed up again.
Thank you for help me, Alain.