Accès membres

Mot de passe perdu? S'inscrire

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

02-09-2025 10:28

Castillo Joseba Castillo Joseba

De ayer en madera muy podrida de haya (Fagus)A ver

31-08-2025 19:41

Enrique Rubio Enrique Rubio

Hi to someone.I need to download this issue of Sve

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

31-08-2025 17:32

Michel Hairaud Michel Hairaud

Bonjour, Pas d'identité trouvée pour cette réc

01-09-2025 08:42

François Corhay

Un ami, conservateur d'une RN en Belgique, m'a adr

31-08-2025 14:34

Thomas Flammer

I have found a Rutstroemia on abt. 2000 m on Alnus

29-08-2025 19:04

Thomas Flammer

Spores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.

30-08-2025 18:29

Joaquin Martin

Hi,I found this undetermined ascomycete on broadle

28-08-2025 17:24

Thomas Flammer

I know, that this is not the real topic of this fo

« < 1 2 3 4 5 > »
Tiny Orbilia with long spores->O. aristata
Marja Pennanen, 10-02-2011 13:53
Hello,

I decided to present all new winter Orbilia species I find. Maybe I can so help Zotto a little bit or maybe just increase his burden.

Anyway I found these tiny ones on my yard on Syringa peel. They are about 0,2 mm wide:
  • message #14245
Marja Pennanen, 10-02-2011 13:53
Re:Tiny Orbilia with long spores
Closer
  • message #14246
Marja Pennanen, 10-02-2011 13:55
Re:Tiny Orbilia with long spores
The scope views vere like this
  • message #14247
Marja Pennanen, 10-02-2011 13:58
Re:Tiny Orbilia with long spores
The asci were 35-50x5-6, paraphyses may be a little swollen at tips, which were 2-3 wide.
The spores were pretty, (17-) 20-22x2,5-3, very narrow at the other end.
It's a pitty, that my photos doesn't show their beauty.

Marja
  • message #14248
Hans-Otto Baral, 10-02-2011 15:05
Hans-Otto Baral
Re:Tiny Orbilia with long spores
Hi Marja

Guy recently said that you very probably have a problem with the camera-ocular relation, that you do not get sharp images at oil immersion. I do not have an advice, maybe there is no possibility. Did you change the distance between ocular and front lens? Yor metadata are killed so I cannot see what you have.

Yoru Orbilia is the common O. aristata Velen. Earlier it was determined as O. occulta, but the type is from N-America and differs, e.g., in much shorter spores.

Usually O. aristata is also shorter, about 15-20. At the margin you will find glassy processes which form the small crenulae.

This was probably above the snow :-), is it jnner face of bark? What date?

Zotto

Zotto
Marja Pennanen, 10-02-2011 16:57
Re:Tiny Orbilia with long spores
Hi Zotto,

thank you. :)
I collected this today and it is really on the inner side of the bark. It grow about 1,5-2 m from the ground maybe 1m above the snow level on a 5 mm wide twig. You really know these!
Evenif common, a new species to me :)

I got only a led light on my microscope now, because the transformed is broken. It's not fixed to the tool and that certainly don't make thingsany better...
I take photos straight on the front lens, because the distance to the specimen is allready long.

Marja
Hans-Otto Baral, 10-02-2011 17:22
Hans-Otto Baral
Re:Tiny Orbilia with long spores
Do you mean the microphotos? Close to the ocular? I meant did you also test going 1-2 cm away from the ocular? (freehand)
Zotto
Marja Pennanen, 15-02-2011 17:49
Re:Tiny Orbilia with long spores
Hi Zotto,

I tried with help of a parer roll, but the photos were if possible even worse,

I've now met this Orbilia on the bark (or phloem) of Salix and Betula, too. So it really seems common ;)
Their spores were not that long, maybe 16-18 micrometers.

Marja
Hans-Otto Baral, 15-02-2011 19:22
Hans-Otto Baral
Re:Tiny Orbilia with long spores->O. aristata
yes, it is Guy's belief that your camera cannot make sharp images :-(

Zotto