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19-09-2010 01:15

[Détermination Hypocreales]
FRANCISCO BALDA JAUREGUI

Substrat : bois quercus Peritheces - Dimensions :

18-09-2010 23:59

Hymenoscyphus macroguttatus
Martin Bemmann Martin Bemmann

Hi, this one I found today on a dead tendril of

18-09-2010 12:28

Calycellina?
Marja Pennanen

Hello, these grow on Vaccinium uliginosum (and

16-09-2010 13:23

Helvella silvicola(Otidea auricula = Winnella silvicola)
Calzada Augusto Calzada Augusto

Hola amigos: Este verano pasado he recolectado He

16-09-2010 11:15

Ciboria americana?
Raúl Tena Lahoz Raúl Tena Lahoz

Hi again! Yesterday I found this Ciboria on a Que

16-09-2010 11:00

Demande de publication
René Dougoud

Chers Collègues, Je viens de déterminer un to

15-09-2010 23:22

Black Disco...
Martin Bemmann Martin Bemmann

Hi, this one I found some days ago on a dead fr

14-09-2010 09:43

Pale on Betula leaves
Marja Pennanen

Hello, as I mentioned I found something besides t

13-09-2010 09:07

Yellow hairy on Betula leaves
Marja Pennanen

Hello, these are tiny, 0,1-0,2 mm wide. There

13-09-2010 08:39

Lamprospora miniata (confirmation)
Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour. Une amie m'a transmis une récolte d'un

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Coelomycete with muriform conidia on bud scales of Abies balsamea
David Malloch, 03-05-2021 18:44
David Malloch
Hello everyone,

I have been finding this fungus every year for more than 10 years and have never found a name for it. In my files I have called it Camarosporium sp., but that is clearly incorrect.

The fungus produces conidiomata on the previous season's bud scales of Abies balsamea. It is very common on older trees along the coast of the Bay of Fundy in New Brunswick. It is mature in May-June but can be found as early as January.


The conidiogenous system is hyphal and fills the centrum as a loose tangled mass. The conidiogenous cells are produced on this system and appear to be phialides. The conidia are ovoid, brown and muriform. Germination on DPYA is by continuous budding and never develops a hyphal colony.


Is anyone here familiar with this fungus?


David

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Thorben Hülsewig, 04-05-2021 12:21
Re : Coelomycete with muriform conidia on bud scales of Abies balsamea
Hi David,

Your fungus has similarities with the illustration of Pseudocanalisporium circumfecundum from "The Genera of Hyphomycetes". Maybe this will help you.

best regards,
Thorben
David Malloch, 04-05-2021 14:53
David Malloch
Re : Coelomycete with muriform conidia on bud scales of Abies balsamea
Hi Thorben,

You are right, the conidia of Pseudocanalisporium are very similar to those of my collections. However, my fungus produces a distinct wall surrounding the conidia, which does not seem to occur in Pseudocanalisporium. I'm afraid I will still need to search further for an appropriate name.

Thanks very much for pointing out the reference.

David
Alain GARDIENNET, 23-04-2023 18:45
Alain GARDIENNET
Re : Coelomycete with muriform conidia on bud scales of Abies balsamea
Hi,
I have the same coelomycete on hand right now. David, did you get news ?
Alain