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25-03-2026 10:35

Encoelia impudicella?
Hulda Caroline Holte

Hello,I collected this species growing on a dead b

26-03-2026 15:31

Hymenoscyphus ombrophiliformis?
Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

26-03-2026 12:50

Pseudombrophila
David Chapados David Chapados

Hi,I'm having a hard time figuring which Pseudombr

26-03-2026 11:17

asco in Ulmus
Vasileios Kaounas Vasileios Kaounas

Found 11-03-26, in leaf of Ulmus sp. Diameter 2-4

25-03-2026 22:23

Orbilia with resin deposits
Marc Detollenaere Marc Detollenaere

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

24-03-2026 15:44

Leptodontidium cf. trabinellum
Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 20:53

Didymopsis helvellae on Helvella?
François Bartholomeeusen

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

23-03-2026 20:16

Coprotus 210226 315
Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

25-03-2026 15:06

Hyaloscypha albohyalina à confirmer
Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

25-03-2026 13:54

Litterature on Eutypa
Enrique Rubio Enrique Rubio

Does anyone know where I could download Paoletti's

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Helotiales gen. sp. from Oxycoccus leaves
Nina Filippova, 08-06-2014 13:18
I have shown once this species before from a single sighting on dead leaf of Oxycoccus palustris. Now it was encountered regularly on the same substrate, but I still not sure about its position. Date of collection: 05.06.2014. Coordinates: N60,893452° E68,672102°

Apothecia sessile, scattered, greenish, translucent, up to 120 mk across, not high, scattered on lower and upper leaf surface.

Excipulum from textura prismatica, cells thick-walled, edge row from clavate cells, all cells in upper part of receptacle with green vacuoles; asci clavate, with obtuse-conical tip, without crozier, with euamyloid ring, 52-60 x 11-14 mk; paraphyses scarcely branched, cylindrical at base, enlarged in upper part (3.3-4.6 mk), with green vacuoles in upper part; spores fusoid, slightly curved, with medium and small green guttules, 17.4 (14.3-19.3) x 3.9 (3.4-4.2) (n=13).

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Nicolas VAN VOOREN, 09-06-2014 08:46
Nicolas VAN VOOREN
Re : Helotiales gen. sp. from Oxycoccus leaves
I suggest a Calycellina species.
Nina Filippova, 09-06-2014 11:41
Re : Helotiales gen. sp. from Oxycoccus leaves
Hello Nicolas.
Yes, some characteristics are close to description of Calycellina in Raitviir (2004):

i have not mentioned before important characters: 1) brown basal ring, 2) bright yellowish pigment in hairs and paraphyses turning reddish-brown in YKY

Following this publication, there is only one species with close spore shape and size, it is Calicellina punctata. But spores in this species are narrower than mine and the substrate differs, e.g. need to be studied further i think.
Hans-Otto Baral, 09-06-2014 23:00
Hans-Otto Baral
Re : Helotiales gen. sp. from Oxycoccus leaves
Hi Nina

C. punctata has spores with a very low oil content, unlike yours. 

The spores strongly remind me of Allophylaria byssacea which is on grasses though although on dicot stems. but the apicla ring is red (type rb). Here an example.
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Nina Filippova, 10-06-2014 18:38
Re : Helotiales gen. sp. from Oxycoccus leaves
Thanks, Zotto.

I will check hemiamyloidity again, i guess my solution has faded and i have missed this reaction probably.