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Mot de passe perdu? S'inscrire

10-09-2025 23:53

Strickeria kochii?
Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

11-09-2025 16:57

Marthamycetales revision published
Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 17:18

Pseudocoprotus catenipilus ???
Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

dark- and small-spored Sordariomycetes on Fraxinus - Denmark
Thomas Læssøe

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

07-09-2025 08:19

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Trichobolus
Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

Hymenoscyphus sp
ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

03-09-2025 21:59

Vibrissea filisporia f. boudieri
Philippe PELLICIER

La Léchère, Col de la Madeleine, alt 1970m, au s

06-09-2025 21:40

Pyrenomycetes
David Chapados David Chapados

Hi, Does somebody know the genus that has those b

07-09-2025 11:34

Hymenoscyphus vacini
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hymenoscyph

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Nectriella sp. on Impatiens
Björn Wergen, 24-05-2013 12:23
Björn WergenHi friends,

I have found another Nectriella, which is near N. dakotensis, but with verrucose, bigger spores and longer setae. It has very small 0,1 mm broad, orange yellow fruitbodies with a distinct whitish ostiolus and surrounding, redbrown setae. I have tried to find this out with Rossman's Family of Bionectriaceae, but stucked between N. alpina and N. halonata, which do not fit this finding.

Short description:
Sp. 11-16x2,5-4µm, slightly verrucose, 1septate. Asci 45-55x6-7µm. setae 60-90x5-6µm. On Impatiens glandulifera.

Any other ideas?

regards,
björn

edit: I think this IS N. halonata. Probably a small spored form?
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Christian Lechat, 24-05-2013 12:33
Christian Lechat
Re : Nectriella sp. on Impatiens
Hi, Björn,
did you test KOH and lactic acid?

Regards,
Christian
Björn Wergen, 24-05-2013 12:37
Björn Wergen
Re : Nectriella sp. on Impatiens
Hi Christian. What does KOH do? I will test it directly.
Björn Wergen, 24-05-2013 12:54
Björn Wergen
Re : Nectriella sp. on Impatiens
I have tested it, but there was no reaction either with KOH nor with lactic acid.
Christian Lechat, 24-05-2013 16:39
Christian Lechat
Re : Nectriella sp. on Impatiens
I think your fungus is not N. halonata, I saw this species, it is not like this. Could you show an image of the ascomatal wall in vertical section?

Christian
Björn Wergen, 24-05-2013 17:39
Björn Wergen
Re : Nectriella sp. on Impatiens
Hmmm the fruitbodies are very soft and impossible for me to cut. What can I do? Just drying?
Christian Lechat, 24-05-2013 18:42
Christian Lechat
Re : Nectriella sp. on Impatiens
you can send me your specimen (dried), I will study it gladly, because your collection is very interesting.

Regards,
Christian
Björn Wergen, 24-05-2013 19:04
Björn Wergen
Re : Nectriella sp. on Impatiens
Hi Christian,

of course I can send you the collection.

regards,
björn