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25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

25-03-2026 22:23

Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

24-03-2026 15:44

Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 20:53

François Bartholomeeusen

Dear forum members,On 23 March 2026, I found sever

23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

25-03-2026 15:06

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

25-03-2026 13:54

Enrique Rubio Enrique Rubio

Does anyone know where I could download Paoletti's

25-03-2026 15:46

Michel Hairaud Michel Hairaud

Bonjour, Je sollicite de l'aide pour cette récol

24-03-2026 19:59

William Slosse William Slosse

Hello everyone,On 23/03/26, I found the following

21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

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Encoelia impudicella?
Hulda Caroline Holte, 25-03-2026 10:35
Hello,
I collected this species growing on a dead branch (broken off a tree) of Picea abies on the 4th of march, in Buskerud county, Norway.
The apothecia are up to 2,5mm wide and 2mm tall. The hymenium has a hazelnut brown color and the outside is slightly lighter. The outer side is granular to felty and often has lighter tufts of short hairs at the margin. The flanks frequently tears in older specimens. The apothecia grows in groups of 2-6 arising from a common structure resembling, but somewhat different from, a sclerotium. The "sclerotia" start off small and black/dark brown before increasing in size and turning lighter brown with a cracked surface. The inside is light brown.

Medulla of textura intricata and possibly with crystals. The hyphae are about 2-4 µm wide.


Asci IKI+ bb, with croziers (possibly a bit variable)
24-29,76 x 3,36-3,84 µm


The paraphyses are cyllindric-clavate, scarcely septate and with some drops. The paraphyses measure up to 3,3µm at the tips.


The spores are thinly allantoid, sometimes with small LBs near the ends. OCI 0/1
(4,8)5,8-6,2 x1-1,5µm


All measurements were taken from living cells in water. The spores were incredibly difficult to measure and photograph due to their small, narrow shape and constant shifting, so the spore measurements might not be 100% accurate. I apologize for the subpar photos and I can try to take more if needed.


The description of Cenangium impudicellum (synonym of E. impudicella) in P. Karst., Bidrag Kännedom Finlands Natur Folk 19: 219 (1871) is the closest match that I have found, but the asci are noted there as being inamyloid. I have struggled to find newer collections of this species to compare my specimen with and I would be grateful for any input.


Thank you in advance and best regards,
Hulda

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Hans-Otto Baral, 25-03-2026 11:39
Hans-Otto Baral
Re : Encoelia impudicella?
Curious collection! I think E. impudicella is a good choice, but I also know it inamyloid from my study of a specimen on Picea from Luxembourg and from photos by R. Blasco on Pinus.
Hulda Caroline Holte, 25-03-2026 17:15
Re : Encoelia impudicella?
Curious, indeed! Thank you for your reply. 
Do you believe that this species can be variable in its amyloidity and that my specimen is Encoelia impudicella regardless of the reaction? 
E. impudicella has not been recorded in Norway previously, and I have not found any collections of the species from Sweden or Finland (where it was derscribed from) since 1935. Therefore, I would like to be certain before I determine it.
Kind regards, Hulda
Hans-Otto Baral, 25-03-2026 17:25
Hans-Otto Baral
Re : Encoelia impudicella?
What is certain and what is not certain? We are rarely sure with the final truth. Variability in the amyloidity occurs, I know several Helotiales which have identical ITS, one sample being IKI deep blue and the other IKI-. I do not know of a sequence of this species. Presumably it belongs in Cenangiaceae, in which both amyloid and inamyloid taxa are frequent.
Hulda Caroline Holte, 26-03-2026 08:39
Re : Encoelia impudicella?
I fully understand what you mean.
Species concepts and delimitation is of course primarily a theoretical construction and changes with our understanding of nature. I know that completely determinate answers in this group of fungi are rare. What I meant to ask was if you, as an expert, would consider my specimen to be close enough to register/note it as E. impudicella (in the current sense of the taxon and with the data that I have given)?
Kind regards, Hulda
Hans-Otto Baral, 26-03-2026 09:46
Hans-Otto Baral
Re : Encoelia impudicella?
To answer your question would mean that I go deeper in what is known about this species. Literature often contains errors and you must be careful to believe what is written. Did you compare the protologue? I see Karsten when doing the combination in Encoelia also states the asci to be inamyloid. More reports I do not have at hand. The spores are somewhat larger in Karsten's diagnosis than in yours and mine. Rafael's measurements better fit: 6--8 x 1,5 (10x1;5).

I think we can name all these finds E. impudicella - for the time being.