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28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

06-03-2026 17:51

Orbilia?
William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

06-03-2026 09:41

indian literature
Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

05-03-2026 19:29

Ciboria caucus?
William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

05-03-2026 16:30

Is this Diaporthe rudis?
François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

19-02-2026 17:49

Ayuda con Tarzetta sp
Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

03-03-2026 20:34

Cercophora-Podospora-Arnium 210226 333 on cow dung
Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Sinensia
Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

02-03-2026 22:07

Geopyxis majalis ?
Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

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Sur (on) Yucca
Piet BORMANS, 28-06-2013 22:53
Piet BORMANS

Est-ce que quelqu'un peut m'aider à déterminer cet ascomycéte ?


Récolté aujourd'hui sur une feuille morte de Yucca. Ascomata rond, très nombreux.


Diamètre  ascomata : 150 à 200 µm


Asci : 55 – 75 x 12 – 20 µm.


Spores :  17 – 21(23) x 6  - 8 µm., elles ne sont pas colorées  et il n'y a pas de cloisonnées


Merci d'avance de votre aide.


Piet Bormans

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Piet BORMANS, 05-12-2013 22:06
Piet BORMANS
Re : Sur (on) Yucca

Question before the holidays (maybe a bad time) - no response


I try again. Maybe someone can help?


Piet Bormans

Maren Kamke, 05-12-2013 23:33
Maren Kamke
Re : Sur (on) Yucca
Hi Piet,
do you have a closeup-photo of the perithecia?
Regards Maren
Alain GARDIENNET, 06-12-2013 07:49
Alain GARDIENNET
Re : Sur (on) Yucca
Peut-être bien Guignardia istriaca.
Alain
Piet BORMANS, 06-12-2013 09:48
Piet BORMANS
Re : Sur (on) Yucca
Close up photos
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Piet BORMANS, 15-12-2013 20:07
Piet BORMANS
Re : Sur (on) Yucca

Thanks Maren and Alain for your response. The spores form  don't fits well with Guignardia istriaca. My knowledge is insufficient to determine this species. Maybe someone is interested, then I will send it to him.


Regards,
Piet

Paul Cannon, 17-12-2013 19:19
Re : Sur (on) Yucca
This may be a member of the Glomerella cingulata aggregate (now considered as Colletotrichum species as we now only use one name per species). Are you sure the host plant is Yucca? It looks like Phormium tenax to me. There are two species of Colletotrichum reported from Phormium in Europe, C. kinghornii and C. phormii (see Damm et al. Studies in Mycology 73, 2012). Neither has a teleomorph linked to them, but I would not be surprised to see that one occurs.

Best wishes

Paul
Piet BORMANS, 02-01-2014 21:10
Piet BORMANS
Re : Sur (on) Yucca
Sorry, I'm a little too late. Thanks a lot for your reply. De host is Yucca sp. (Y. recurvifolia or Y. filamentosa ?).  I add a photo I made earlier.

A happy new year!


Piet

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