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05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

14-03-2026 13:51

Phylloscypha sp
Thierry Blondelle Thierry Blondelle

Hi everybody Under Quercus ilex, i hesitate to na

12-03-2026 19:44

Ostropoloid fungus on Hibiscus
Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

11-03-2026 17:36

Help for Genus and Species ID
Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

12-03-2026 15:45

Dematioscypha cf. olivacea
Åge Oterhals

Dear forum,I found this small discomycete on a ver

08-03-2026 14:05

Helvella lacunosa
Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 16:17

Mollisia atlantica
Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

12-03-2026 14:37

Octospora
David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Saccobolus minimoides ?
Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

Sp
ruiz Jose

Hola, me paso esta colección en madera de pino, t

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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