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31-08-2025 17:32

Michel Hairaud Michel Hairaud

Bonjour, Pas d'identité trouvée pour cette réc

31-08-2025 19:41

Enrique Rubio Enrique Rubio

Hi to someone.I need to download this issue of Sve

31-08-2025 14:34

Thomas Flammer

I have found a Rutstroemia on abt. 2000 m on Alnus

29-08-2025 19:04

Thomas Flammer

Spores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.

30-08-2025 18:29

Joaquin Martin

Hi,I found this undetermined ascomycete on broadle

28-08-2025 17:24

Thomas Flammer

I know, that this is not the real topic of this fo

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

24-08-2025 21:59

Edmond POINTE Edmond POINTE

Bonsoir amis mycologues,Trouvé sur crottin de che

27-08-2025 12:02

Pavol Palo

Hello dear friendsI would like to ask for sharing

25-08-2025 17:37

François Freléchoux François Freléchoux

Bonjour,Nous avons trouvé samedi dernier à l'ét

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Microthyriale on Lophocolea
Enrique Rubio, 26-02-2016 15:40
Enrique Rubio

Hi to everybody


Searching for helotiales on liverworts we have found these very minute (70-100 microns), superficial, scattered, ostiolate, brownish black thyriothecia (i feel they are so by the type of tissue) on decaying thallus of I pressume Lophocolea bidentata. The bitunicate asci are oligosporic, perhaps only 4-spored. Ascospores hyaline or subhyaline, 1-septate.


Have you some idea for help me?


Many thanks again

  • message #41189
  • message #41189
Georges Greiff, 05-01-2022 15:24
Re : Microthyriale on Lophocolea
Hi Enrique,

Did you get anywhere with this? It looks related to Lichenopeltella alpestris s.l. found on Plagiochila asplenioides (see Marsh et al., 2010) but is clearly distinct as it lacks the papilliform cells on the ostiole neck and the asci are 4-spored.

George
Enrique Rubio, 05-01-2022 15:31
Enrique Rubio
Re : Microthyriale on Lophocolea
Hi Georges.
Nothing. I had even forgotten about it. But since you're talking about it, do you have a description of this fungus you're talking about in  IMI Descr. Fungi Bact. 174(nos 1731-1740): [2] (2007)?
Georges Greiff, 05-01-2022 15:42
Re : Microthyriale on Lophocolea
Hi Enrique,

I only have this https://karstenia.fi/ascomycetes-and-anamorphic-fungi-growing-on-plagiochila-hepaticae-in-finland/ - I have collected this on Plagiochila asplenioides and once on dead Polytrichum commune antheridial cups. We think it may be colonising the cuticle, perhaps with a broad host range.

And a documentation of my collection here https://fungi.myspecies.info/all-fungi/lichenopeltella-sp-p4998 - it is distinct from the true L. alpestris.

Hope this helps,
George
Enrique Rubio, 05-01-2022 19:52
Enrique Rubio
Re : Microthyriale on Lophocolea
Thank you, Georges, but I don't think that my collection can be assimilated to those you indicate.
I will keep on waiting
Chris Yeates, 06-01-2022 19:40
Chris Yeates
Re : Microthyriale on Lophocolea
The IMI Description Enrique mentions above is not about alpestris - that taxon is merely part of several new combinations into Lichenopeltella.

Chris
Enrique Rubio, 06-01-2022 19:57
Enrique Rubio
Re : Microthyriale on Lophocolea
Thanks a lot, Chris.
Georges Greiff, 08-05-2022 16:03
Re : Microthyriale on Lophocolea
Not an ID but some notes on similar collections as I have been working a bit on these today.

I found what seems to fit L. fimbriata and also L. alpestris sensu Racovitza on the abaxial leaf surfaces of Polytrichum commune antheridial cups. The former is particularly interesting given that it was only found on conifer leaves in the past, and the latter seems to grow on several moss and liverwort hosts. Maybe this suggests wide host preferences for some members of the group - they are often on waxy parts of host plants.

https://bryophilous.co.uk/lichenopeltella-sp/

It could even be worth checking the lichenicolous ones for candidates for this collection - a previous post on this forum suggests that a species was found both on Cladonia and surrounding spruce needles. http://www.ascofrance.com/search_forum/52475

Racovitza (1959) also includes L. cetraricola as recorded on a liverwort, and Aulographella muscicola on a moss. Yours is different to both of these as well.

I still need to read more about the many lichenicolous ones...

All the best,
George