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01-10-2007 11:09

Mollisia poilu / Hairy Mollisia
Nicolas VAN VOOREN Nicolas VAN VOOREN

Voici la description (français + anglais) d'un Mo

29-09-2007 23:51

Hymenoscyphus
Yannick Mourgues Yannick Mourgues

Bonsoir. Je sollicite votre aide pour cet Hymenos

29-09-2007 09:08

coelomycete sur aesculus
Alain GARDIENNET Alain GARDIENNET

Bonjour, C'est peut-être un classique de marron

28-09-2007 12:41

Base de donnees.
Thierry Duchemin Thierry Duchemin

Bonjour à tous, Il serait bien que l'auteur d'un

24-09-2007 23:30

Scutellinia subhirtella
Yannick Mourgues Yannick Mourgues

Bonsoir. Voici une récolte de ce que j'ai iden

23-09-2007 05:39

Lachnum piscinarum
Jae-Gu Han

I'm seeking a literature of 'Lachnum piscinarum V

22-09-2007 13:39

Nitschkia collapsa
Alain GARDIENNET Alain GARDIENNET

Bonjour, Juste un besoin de confirmation pour ce

21-09-2007 12:24

Hymenoscyphus avec l'hymenium de couleur lilas sur Fagus sylvatica cupules
Enrique Rubio Enrique Rubio

Il croit sur les cupules de Fagus a 1300 m d'altit

20-09-2007 14:18

Pulvinula blanche
Enrique Rubio Enrique Rubio

Bonjour a tous. Quelqu'un pourrait me faciliter l'

17-09-2007 21:20

soutien
Jean Pierre Dechaume Jean Pierre Dechaume

sur la terre verticale d'ornière, 2 ascos: le pr

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Bryoscyphus turbinatus-like on Polytrichum
Georges Greiff, 25-06-2022 22:39
Hi all,

Since I do not have Velenovsky (1934), I would like to get any opinions on this Helotiales sp. found on the lower, dying leaves of Polytrichum commune. Is it one of those featured in that book? To me, it seems to resemble "Bryoscyphus" turbinatus but is smaller in most respects.

Apothecia 60-130 diam, around 40 tall, whitish when wet, yellowish when dry, with a short darker stipe. Excipulum comprising rounded cells of about 7 x 5, smaller near stipe. At margins, short hairs develop up to about 25 long x 3.5-4 wide.

Asci 8-spored, apical apparatus staining blue in IKI. Croziers + (?). Paraphyses narrowly clavate, perhaps minutely verrucose (cannot assess VBs as dead). Ascospores broadly fusoid, hyaline, about 10-12 x 2.5-3.5 (probably a bit bigger when fresh).

Thanks,

George
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Hans-Otto Baral, 26-06-2022 18:09
Hans-Otto Baral
Re : Bryoscyphus turbinatus-like on Polytrichum
You have it only dry? The ascospores should be shown in ater with their contents, best when still alive. Also the paraphysis contents in water.

The asci seemed to me without croziers but it is not clear.
Georges Greiff, 26-06-2022 18:19
Re : Bryoscyphus turbinatus-like on Polytrichum
Hi Zotto,

Unfortunately, the specimen is 4 years old from a herbarium specimen of the moss, so I can only observe dead material - not overly useful for this group. I will keep an eye out for fresh specimens in future fieldwork.

Best wishes,
George