Black pyrenomycete on Quercus

07-02-2026 20:30

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Hi!Anyone that have this one and can sen it to me?

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Black pyrenomycete on Quercus

Ethan Crenson, 18-01-2017 07:55

From New York City. In Prospect Park, Brooklyn on Quercus (or possibly Liriodendron) I found this black pyrenomycete. It creates large, flat black patches on branches and bark. Ostioles are umbilicate. Perithecia globose and layered up to three or four deep. The spores are hyaline, irregularly cylindric with two oil droplets. Spores measure 8-10.5?m by 4.5-5.5?m. Asci are IKI+ 82-90?m by 5.8-7.8?m ending in a pointed "tail".

Jacques Fournier, 18-01-2017 09:12

Re : Black pyrenomycete on Quercus

Hi Ethan,
this is a Camillea, likely C. punctulata which is known to occur on Quercus in north America and to have such ostioles and ascospores.
As it is a species I never encountered and which appears to have tropical counterparts, I would greatly appreciate if you can send me a part of your collection for study.
Thanks,
Jacques

Ethan Crenson, 18-01-2017 15:47

Re : Black pyrenomycete on Quercus

Thank you for your comment. I'd be happy to share the collection. Please let me know where to send it.

Jacques Fournier, 18-01-2017 17:22

Re : Black pyrenomycete on Quercus

my postal address:
Jacques Fournier
"Las Muros"
F. 09420 Rimont

please let the sample dry for a couple of days at room temperature (no dryer!) and wrap it in paper, not in plastic or metal!
Thanks a lot,
Jacques

Jacques Fournier, 15-02-2017 10:02

Re : Black pyrenomycete on Quercus

Hi Ethan,
many thanks for the sample which is in excellent condition.
No doubt it is typical Camillea punctulata, nice find!
Cheers,
Jacques

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