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Oskari VirtanenHi,could anyone help me identify this, I suspect P
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Margot en Geert VullingsThis possible Karstenia was found on the bark of d
Troposporella fumosum => Troposporella monilipes
Riet van Oosten,
16-01-2023 21:31
Hello,
Nearby the find of Calycina claroflava on Populus x canescens (by Rene Hoogenboom) I found this nice hyphomycete.
Could this be Troposporella fumosum?
Greetings, Riet
Chris Yeates,
17-01-2023 23:12
Re : Troposporella fumosum? on Populus x canescens
Hi Riet
It looks close. Have you eliminated Troposporella (Helicoma) monilipes?
Do you have access to:
Goos RD (1986) A review of the anamorph genera Helicoma. Mycologia 78:744–761
Helicosporous hyphomycetes from China (2007) Fungal Diversity
Regards
Chris
Riet van Oosten,
18-01-2023 08:12
Re : Troposporella fumosum? on Populus x canescens
Hi Chris,
I used the key on page 147 and I think I see conidiophores constricted at septa
https://www.researchgate.net/publication/227251734_Transfer_of_two_Helicoma_species_to_Troposporella_based_on_molecular_and_morphological_data
and this figure
https://www.researchgate.net/figure/Cultures-and-specimens-of-Troposporella-species-included-in-this-study-Ellis-1971-Goos_tbl1_227251734
In this topic I found a link
http://www.ascofrance.com/search_forum/14326
But difficult to tell.
I used the key on page 147 and I think I see conidiophores constricted at septa
https://www.researchgate.net/publication/227251734_Transfer_of_two_Helicoma_species_to_Troposporella_based_on_molecular_and_morphological_data
and this figure
https://www.researchgate.net/figure/Cultures-and-specimens-of-Troposporella-species-included-in-this-study-Ellis-1971-Goos_tbl1_227251734
In this topic I found a link
http://www.ascofrance.com/search_forum/14326
But difficult to tell.
Hardware Tony,
18-01-2023 19:43
Re : Troposporella fumosum? on Populus x canescens
Hi Riet,
Looking at the colour and size of the conidia spirals they seem to match T. monilipes more - dark brown and 12-19µm, whereas T. fumosa are Golden Brown and 12-16. Your images here against the scale provided suggest 19-20 plus at the high end. Also not constricted and although difficult to judge without seeing T. fumosa I would expect more constriction. Probably added to the confusion!
Best wishes Tony
Looking at the colour and size of the conidia spirals they seem to match T. monilipes more - dark brown and 12-19µm, whereas T. fumosa are Golden Brown and 12-16. Your images here against the scale provided suggest 19-20 plus at the high end. Also not constricted and although difficult to judge without seeing T. fumosa I would expect more constriction. Probably added to the confusion!
Best wishes Tony
Riet van Oosten,
18-01-2023 19:54
Re : Troposporella fumosum? on Populus x canescens
Hi Tony,
Thank you so much for your help/explanation! I had no idea how or what to measure.
Best wishes, Riet
Jason Karakehian,
22-01-2023 23:18
Re : Troposporella fumosum => Troposporella monilipes
Hi Riet, do you happen to have any material of this to share with me? I am interested in perhaps trying to culture it if it has been air-dried, and then sequence it? Nice observations!
Riet van Oosten,
23-01-2023 12:42
Re : Troposporella fumosum => Troposporella monilipes
Hi Jason,
Thank you! :-)
Got an email from Rene that he is on holiday now. I'm sure he will collect new material when he gets back.
I will email you when the material is collected, checked and dried.
Best wishes, Riet
Thank you! :-)
Got an email from Rene that he is on holiday now. I'm sure he will collect new material when he gets back.
I will email you when the material is collected, checked and dried.
Best wishes, Riet
Jason Karakehian,
23-01-2023 14:58
Re : Troposporella fumosum => Troposporella monilipes
Fantastic! I hope that he is able to find more. Please air-dry the specimen so that I can attempt to culture it. Thank you and I look forward to hearing from you!
Jason Karakehian,
14-07-2025 17:31
Re : Troposporella fumosum => Troposporella monilipes
Hi Riet,
I am preparing a culture of this to send to CBS for deposition. I realized that I don't have complete collection data. I have Rene Hoogenboom as the collector and you as determiner. On Populus x canescens, in Netherlands but I don't have exact locality information or collection date. I will deposit the specimen in BPI.
Kind regards, Jason
I am preparing a culture of this to send to CBS for deposition. I realized that I don't have complete collection data. I have Rene Hoogenboom as the collector and you as determiner. On Populus x canescens, in Netherlands but I don't have exact locality information or collection date. I will deposit the specimen in BPI.
Kind regards, Jason
Riet van Oosten,
14-07-2025 17:47
Re : Troposporella fumosum => Troposporella monilipes
Jason Karakehian,
14-07-2025 17:56
Re : Troposporella fumosum => Troposporella monilipes
Thank you, Riet!
Kind regards, Jason
Kind regards, Jason