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29-09-2022 20:26

Elisabeth Stöckli

Bonsoir, Trouvé à 2'500 m (prairie alpine), tai

05-10-2022 14:35

Viktorie Halasu Viktorie Halasu

Hello,I've found here a Hypoxylon (or Hypomontagne

04-10-2022 18:38

Juuso Äikäs

These little brown, hairy apos were growing on a d

01-10-2022 11:54

DirkW DirkW

chers collègues, anyone out there who could send

05-10-2022 16:09

JEAN CABALION

Bonjour, Qui peut me renseigner sur ce Podostroma

24-10-2021 21:50

Robin Isaksson Robin Isaksson

Hi,Found on Andreaea rupestris sweden.ascomata bl

29-09-2022 17:25

Juuso Äikäs

A finding from a couple days ago: a few white Hyme

29-09-2022 13:34

Marja Pennanen

Dear colleagues, a couple of days ago I found the

13-12-2014 21:47

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas imágenes de un disco neg

26-09-2022 15:31

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,please, can this be something else than Hypo

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Hysterioid on Pinus bark
Juuso Äikäs, 14-03-2022 14:02
Yesterday I found some hysterioid fungi growing on bark of a dead, standing Pinus sylvestris tree.

The fruitbodies aren't in the best condition and must've developed last season. But there were spores to be found and some asci as well.

The spores have one septum and measure 27.8 - 32.7 × 8.8 - 9.5 µm. 

Actidium baccarinii is the best match I found, but it's spores shouldn't be nearly as big as these are. Maybe the large size is because of germination? Or is there some other alternative?
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  • message #72070
  • message #72070
Adam Polhorský, 14-03-2022 17:08
Re : Hysterioid on Pinus bark
Hi Juuso, I dont have a name for you but I think it is the same as http://ascofrance.com/search_forum/65795 and http://ascofrance.com/search_forum/41100
Björn Nordén, 14-03-2022 17:41
Re : Hysterioid on Pinus bark
Please check Poetschia buellioides
Juuso Äikäs, 14-03-2022 18:59
Re : Hysterioid on Pinus bark
Thanks a lot for the answers and links! 

That seems to be the right direction -- so this actually belongs to Patellariaceae.

I found a description of Poetschia buellioides (A reassessment of the genera referred to the family Patellariaceae (Ascomycota)), but it mentioned that that one grows on deciduous wood; although there appear to be sightings of it in GBIF from Pinus. Otherwise it seems to fit pretty well.
Björn Nordén, 14-03-2022 19:15
Re : Hysterioid on Pinus bark
Yes, it is common on Pinus bark.

Best regards

Björn
Juuso Äikäs, 14-03-2022 20:18
Re : Hysterioid on Pinus bark
Ok, good to know! This species and even the genus seems to be missing from the Finnish species list. Probably once again one of these common but rarely-if-ever reported cases.
Björn Nordén, 14-03-2022 20:57
Re : Hysterioid on Pinus bark
I have made a key to hysterioids in Fennoscandia in case you are interested.
Best
Juuso Äikäs, 14-03-2022 21:07
Re : Hysterioid on Pinus bark
Ah yes! I actually downloaded that last week from researchgate:

https://www.researchgate.net/publication/351561550_Key_to_hysterioid_fungi_on_bark_and_wood_in_Scandinavia

A very nice key. Somehow I just managed to miss this one...