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24-11-2018 19:58

Joop van der Lee Joop van der Lee

Found on cow dung, most of the time in the visinit

03-12-2018 03:12

Matthias Mann Matthias Mann

Chers spécialistes, reading Ethan's topic from

05-12-2018 12:19

Castillo Joseba Castillo Joseba

Me mandan de Galicia material seco de este Ascomyc

02-12-2018 18:14

Ueli Graf Ueli Graf

Hymenoscyphus oder Phaeohelotium auf einem Laubhol

04-12-2018 13:27

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et à tous,J'ai trouvé récemme

28-11-2018 21:26

Malcolm  Greaves Malcolm Greaves

This perethecia c.25mm was on horse dung. The only

02-12-2018 10:26

Per Marstad Per Marstad

I found this on wood, probably Fagus, in Norway.Ve

03-12-2018 18:38

Lieve Deceuninck Lieve Deceuninck

Dear members of AscofranceIn several publications,

28-11-2018 19:35

Ethan Crenson

Hello all!In New York City this weekend I found wh

02-12-2018 14:30

Amadej Trnkoczy Amadej Trnkoczy

Hi there! Could this be Peziza cerea? Substratum

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Hymenoscyphus dans P. lentiscus
Javier Ormad, 06-12-2009 20:21
Bonjour à tous!
Je présente une possible Hymenoscyphus sur tiges morts de Pistacia lentiscus. Le plus grand diamètre de 1,5 mm à pied jusqu'à 2 mm. Les spores n'ont pas de cils ni cloisons et mesurée 14-21 x 3.5-4.5 microns. Suite à la clé de Ellis & Ellis, je pense que pour obtenir à H. vitellinus, mais sont un peu étroit des spores.
Avec les variétés de H. scutula, et leur tendance s'observe aussi loin de spores, mais je ne vois ni cils, ni cloisons, pourrait écarter cette espèce?
Merci d'avance
  • message #9714
Javier Ormad, 06-12-2009 20:21
Re:Hymenoscyphus dans P. lentiscus
Micro
  • message #9715
Hans-Otto Baral, 06-12-2009 20:35
Hans-Otto Baral
Re:Hymenoscyphus dans P. lentiscus
Dear Javier

clearly a Hymenoscyphus. Are you sure the substrate is twigs? It looks like it could also be petioles? Then your fungus could be H. caudatus s.l. Important is to look for the ascus base. If you still have the fungus fresh you should also look for the living paraphyses for their contents. The asci you figure are dead, perhaps you find living ones which are much larger.

H. scutula has likewise aseptate spores when mature, the septa develop later.

Javier Ormad, 06-12-2009 22:37
Re:Hymenoscyphus dans P. lentiscus
Petiole not proper, but the stems that attach to the leaves. But the color of the apothecia becomes yellow and not white or cream as described in Ellis & Ellis. The spores believe mature and I think the content of paraphyses is greenish with vacuoles, septa and without terminal enlargement.
H. caudatus is a good choice and P. lentiscus could be another host, but did not rule H. scutula if the septa and the cilia are very mature spores. I have a fresh specimen ........
Thanks