Accès membres

Mot de passe perdu? S'inscrire

21-07-2013 14:57

Marja Pennanen

These are about 0,2 mm wide.The spores are about 1

23-07-2013 07:25

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Good morning,could anyone send me this article?Svr

04-07-2013 12:32

Malcolm  Greaves Malcolm Greaves

This Cordyceps was growing from a fly which should

20-07-2013 19:25

Joop van der Lee Joop van der Lee

Found on horse dung.I have looked into the differe

19-07-2013 23:13

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Good evening,I determinated this Ascobolus as A. v

17-07-2013 17:03

Jean-Louis JALLA Jean-Louis JALLA

Quelqu'un a t'il une idée, je "sèche"...Sur une

19-07-2013 12:32

Björn Wergen Björn Wergen

Hello there,I was asking me if someone has some of

18-07-2013 23:26

Joop van der Lee Joop van der Lee

Found on horse dung, surprised to find this I did

19-07-2013 05:00

Nina Filippova

I see that Ombrophila's could not be solved very e

17-07-2013 17:52

Nina Filippova

This specimen is species of Fuscolachnum, i guess.

« < 1274 1275 1276 1277 1278 > »
Arnium macrotheca
Joop van der Lee, 12-07-2013 09:21
Joop van der LeePerithecia 0.48-0.58x0.41-0.46 mm, neck covered with tufs of rigid agglutinated as well as single, non straight, septated, thick-walled hairs (2.45-2.65 um wide) with rounded tops. Tufs range between 159 and 340 um.

Asci: 8-spored, 190.52-204.37x47.72-58.88 um (without the stipe), broad with long thin stipe (up to 122.96 um).

Spores: Broadly elliptical, thick-walled, with germ pore (2.58 um), uniseriate when young in a diagonal position, when mature uniseriate at top and bottom and biseriate in the middle. 46.45-46.85x25.68-26.93 um.   
Spores do not have a pedicel and lacking caudae.
  • message #24375
  • message #24375
  • message #24375
  • message #24375
  • message #24375
  • message #24375
  • message #24375
  • message #24375
Michel Delpont, 12-07-2013 10:52
Michel Delpont
Re : Unkown asco on horse dung
Salut Joop.

Certainement Arnium macrotheca. Il me semble voir sur certaines spores une étroite enveloppe gélatineuse. Elle est difficile à voir, essaye d'autres préparations avec un colorant différent. Les dimensions correspondent ainsi que les poils au sommet.

Michel.
  • message #24376
Joop van der Lee, 12-07-2013 10:57
Joop van der Lee
Re : Unkown asco on horse dung
Merci Michel,


Can I use cotton blue when looking for the gelatineus sheath or do you prefer another colorant?

Joop
Michel Delpont, 12-07-2013 11:11
Michel Delpont
Re : Unkown asco on horse dung
Try with diluted ink or black chlorazol.

Michel
Joop van der Lee, 28-07-2013 22:46
Joop van der Lee
Re : Unkown asco on horse dung
Here is your gelatineus sheath Michel, I used Cottonblue. I also discoverd large de Bary Bubbles measuring 24.98-25.18x17.59-18.11 um
  • message #24562
  • message #24562
Michel Delpont, 29-07-2013 08:55
Michel Delpont
Re : Unkown asco on horse dung
Hello Joop.

Your first photo seems to confirm Arnium macrotheca we see the gelatineus sheath.


Michel.
Joop van der Lee, 29-07-2013 13:55
Joop van der Lee
Re : Unkown asco on horse dung
Mercdi Michel
Norbert Heine, 29-07-2013 17:51
Norbert Heine
Re : Unkown asco on horse dung
Hello Joop & Michel,

this interesting species seems to be rare in Germany. I saw it only three times, all gatherings on old horse dung. Actually it's growing in moist chamber!
Half year ago I did a little portrait at Pilzforum.eu, sorry only in german!
The spores are in Indian Ink.
If you want, you can have a look at it here:

http://www.pilzforum.eu/board/thema-arnium-macrotheca

Maybe that you can't see the nice pictures by Rada, therefore you have to be registered :-(

Norbert
Joop van der Lee, 29-07-2013 18:02
Joop van der Lee
Re : Unkown asco on horse dung
Hello Norbert,


I have a little piece of horse dung in culture (10x10 cm) and so far I have had 15 species and still growing.


Joop
Michel Delpont, 29-07-2013 20:23
Michel Delpont
Re : Unkown asco on horse dung
Hello Norbert and Joop.

Norbert
thank you for the link, it works! I found several times Arnium macrotheca or on horse dung, or on cow dung , but still in a humid chamber.

Regards.

Michel.
  • message #24577