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05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Xerombrophila crystallifera?
Edvin Johannesen, 30-10-2018 18:22
Edvin JohannesenI suspect that I have Xerombrophila crystallifera, collected in a previously flooded arae with deciduous trees, incl. Salix. Apothecia break through the bark in a fasciculate manner. White pruina on excipulum (crystals). Ectal excipulum (?) cells prismatic. Medullary excipulum gelatinised. Pictures are of crystals and prismatic cells in water. Asci, paraphyses and spores in Congo red. Blue ascus pore in Lugol. All photos 1000x oil imm. Scale 1 micron. Hans-Otto, you described the species (and genus). Can you confirm? I do not have your 2013 paper (would love to have it, if possible).  Thanks.
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Wendy Untereiner, 30-10-2018 18:39
Re : Xerombrophila crystallifera?
Dear Edvin,

As per your request.

WAU
Edvin Johannesen, 30-10-2018 18:47
Edvin Johannesen
Re : Xerombrophila crystallifera?
Thanks a lot (got it by email) :-)
Edvin Johannesen, 30-10-2018 19:14
Edvin Johannesen
Re : Xerombrophila crystallifera?
By the way, it was found northwest of Trondheim in Mid-Norway, so it would be a significant jump in the known distribution of the species.
Hans-Otto Baral, 30-10-2018 22:25
Hans-Otto Baral
Re : Xerombrophila crystallifera?
Yes of course it is this species. You found it this month? Because you figured only dead elements.

I assume it was a standing dead branch? Very probably it was Salix, as always.

Indeed it is the first record from Scandinavia known to me.
Zotto
Edvin Johannesen, 30-10-2018 22:40
Edvin Johannesen
Re : Xerombrophila crystallifera?
It was collected in June and sent to me a few weeks ago, so I guess you are right it is all dead. I am not so trained in judging dead or alive.  Thanks for the confirmation! :-)
Hans-Otto Baral, 30-10-2018 22:43
Hans-Otto Baral
Re : Xerombrophila crystallifera?
Is your Congo Red aqueous or other? The species survives for some time in the dry state, maybe even months, at least the spores.
Edvin Johannesen, 31-10-2018 00:14
Edvin Johannesen
Re : Xerombrophila crystallifera?
Yes, in water. From Micro Science.