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16-01-2019 23:11

Miguel Ãngel Ribes Miguel Ángel Ribes

Good night friendsDo you know if is there cited Ps

13-01-2019 21:29

Ethan Crenson

I find this unknown (to me) asco in the same locat

15-01-2019 17:32

Ethan Crenson

Hello, In the Bronx, New York City last Saturday

16-01-2019 17:33

Joop van der Lee

Found on cow dung.Apothecia not measured.Ascus: 29

16-01-2019 16:40

Joop van der Lee

Found on cow dung.Fruitbody: translucent; no measu

16-01-2019 15:03

Joop van der Lee

Found on cow dung.Fruitbody: 100.7x56.25; no long

14-01-2019 15:56

Per Marstad Per Marstad

This was growing on a subiculum (see photo).Spores

08-01-2019 20:46

Per Marstad Per Marstad

This was growing on Fagus, here in Norway.Asci 70-

18-12-2015 19:03

Joop van der Lee

I am looking for the following documentation:  

15-01-2019 00:22

Marcel Heyligen Marcel Heyligen

I found this asco by chance on the fruits of Capse

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Lophiostoma sp on Acer query
Watt John, 07-11-2018 16:15
Growing on decorticate Acer is what otherwise seems to match a Lophiostoma sp though the many peritheciea are situated on a continuous black subiculum, which does not seem typical.

I see there are a number of Lophiostoma sps.: this one has transverse and longitudinal septae ( up to 5)

but the ascospores are rather smaller than L. compressum at 17.3 x 6.6 mc. I was unable to distinguish features of the ostiole on this rather dry collection.

John Watt
  • message #55097
  • message #55097
  • message #55097
Alain GARDIENNET, 07-11-2018 16:41
Alain GARDIENNET
Re : Lophiostoma sp on Acer query

Hi,


Please check if it's really one Lophiostoma species. I don't think. Ascomata should be immersed, with a lateral compressed neck. You can compare with pictures of Ascofrance database.


I guess that your ascomata are superficial growing on an old pyrenomycete. Microscopy reminds the genus Capronia.


Alain

Watt John, 07-11-2018 21:16
Re : Lophiostoma sp on Acer query
Thanks you, especially for pointing out the underlying pyrenomycete; that makes sense now.

 

I shall check out Capronia sps, which are also new to me; spores look very similar. Learning curve slowly going up. 

Stange to say, whilst looking at my next collection, I could unexpectedly see such spores , but this time 7 septate and rather more pointed at each end, in the squash and then found 0.25 mm perithecia on bark and also on white subiculum which otherwise doesn't reveal any features. May remain a mystery.  

Kind regards,

John Watt

Ormskirk, Lancashire