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16-04-2013 16:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Here is a collection of Orbilia crenatomarginata t

15-04-2013 22:31

Joop van der Lee Joop van der Lee

Found on cow dung.A circular shaped fruitbody (66.

16-04-2013 00:02

Esquivel-Rios Eduardo

Hi All.Black mildew in Andira sp. (Fabaceae) from

11-04-2013 03:21

Roland Labbé

Bonjour !Voici un Orbilia probable de la région d

14-04-2013 15:32

hannie wijers

Could this be a Podospora decipiens be? Found on h

13-04-2013 19:48

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonsoir.Trouvé ce jour, sur bois de feuillu, dÃ

11-04-2013 09:52

Salvador Tello

Hola a todos.Esta Scutellinia la he encontrado hac

13-04-2013 12:37

Yannick Mourgues Yannick Mourgues

Avec Squamarina cartilaginea sur sol calcaire (ter

13-04-2013 11:45

Yannick Mourgues Yannick Mourgues

Bonjour à tous.Toutes petites sphères noires à

09-04-2013 08:38

Stefan Blaser

Hello everybody I would appreciate any advice on

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Orbilia: confirmation
Nicolas VAN VOOREN, 16-04-2013 16:32
Nicolas VAN VOORENHere is a collection of Orbilia crenatomarginata to be confirmed.
Collected on rotten trunk of Populus, on soil.
Ectal excipulum of t. globulosa with cells 6-21 µm Ø. Asci with an elongated base, 20-28 x 2.8-3 µm. Paraphyses about 1.5 µm Ø, with glassy process at the top (0.5~1 µm thick). Spores curved, often like an elongated S, no spore body seen, 6-8 x 0.3-0.5 µm. Dark subiculum present.
  • message #22951
  • message #22951
  • message #22951
Hans-Otto Baral, 16-04-2013 16:39
Hans-Otto Baral
Re : Orbilia: confirmation
Hi Nicholas

there are some strange things with this fungus.  Could you provide a closup of an apothecium for the margin? No teeth? Also a microphoto of the margin, best as a section. Any glassy processes there?

As the specimen is fresh the spores hould contain a spore body. The lower spores whould be inversely oriented.

The glassy substance above the paraphyses stain turquoise in CRB or red-brown in IKI, and represent exudate, not glassy wall material.

Was it on wood or bark? Could you supply me the location and date? 

Zotto
Hans-Otto Baral, 16-04-2013 19:08
Hans-Otto Baral
Re : Orbilia: confirmation
I just evaluated the size from your drawing of 3 spores: I arrive at 6.2-7 x 0.6 µm
Zotto