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22-06-2018 18:10

Jan Knuiman

Hello,Yesterday I found these discomycetes with a

20-06-2018 15:55

Greiff Georges

Unknown ascomycete on the moss Trichostomum crispu

22-06-2018 17:15

Malcolm  Greaves Malcolm Greaves

A small leaf and surrounding debris was collected

22-06-2018 16:24

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,Je pense avoir trouvé P

19-06-2018 21:45

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et tous, Je n'arrive pas à voi

22-06-2018 00:53

Valencia Lopez Francisco Javier

Hola a todos/asRecolectados hace unos días en tal

08-06-2018 19:29

Castillo Joseba Castillo Joseba

No se que pueda serEn tierra en bosque de fagus, e

18-05-2018 18:38

Riet van Oosten Riet van Oosten

Hello,Found 17-05-2018, The Netherlands.On: Phragm

20-06-2018 18:36

Danièle Carbonnel

j'ai trouvé cet échantillon dans la mousse et je

18-06-2018 19:50

Elisabeth Stöckli

Bonsoir, Trouvé sur feuille de Rubus (à 965m, R

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white Lachnum on Pinus cone
Chris Yeates, 05-01-2018 20:40
Chris YeatesBonsoir tous
I expected this collection to be a straightforward Lachnum virgineum, but it lacks the prominent lanceolate paraphyses of that species and, along with other characters, the spores differ.
Apothecia clustered towards the proximal end of a cone of a Pinus sp. (planted, non-native).
Asci 8-spored, J+ (MLZ used here - a slip, I had intended Lugol), croziers present (arrowed).
Ascospores ellipsoid-fusoid 10.5-11.7 x 3.4,3.8µm (Qe = 3.1).
Hairs ornamented along full-length, cylindrical, not expanding at apex.
Ectal excipulum of very small,rather thick-walled, and narrow cells, becoming maze-like at junction with stem, and very narrowly parallel in stipe (see images).
Any suggestions and/or help very welcome.

Chris
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Hans-Otto Baral, 08-01-2018 23:54
Hans-Otto Baral
Re : white Lachnum on Pinus cone
Hi Chris
I am sorry i cannot name this with confidence.  And I overlooked your posting.

The hairs clearly point to L. virgineum. With this DCI contrast and the high resolution it is a bit difficult also. The asci were not alive? Are only a few mature? Spore number does not seem to be reduced?

maybe the paraphyses are slightly lanceolate?  I still guess it is a misdeveloped L. virgineum.
Zotto
Chris Yeates, 09-01-2018 03:03
Chris Yeates
Re : white Lachnum on Pinus cone
Thanks for that Zotto
I can see that my confusion was understandable. It may have been exaggerated by the fact that the specimen has been incubated for a while in the fridge and may well have developed atypically - there were, in addition, some abnormal spores which I ignored.

best wishes
Chris