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10-04-2026 23:22

Pyreno on Phragmites australis
Gernot Friebes

Hi,ascospores are 1- to 3-septate, approximately 

10-04-2026 15:51

Botrytis ficariarum & Peronospora ficariae?
William Slosse William Slosse

Hello everyone, On 08/04/26, I found a growth sit

09-04-2026 15:25

Slerotinia verrucispora ???
Jac Gelderblom

On bare soil between mosses Ifound an asco I deter

09-04-2026 13:55

Small-spored "Diplodia" on broom (Cytisus scoparius) - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10589176

09-04-2026 10:12

Melanosporalian on attached decayed wood on fallen Carpinus, Denmark - very long-necked
Thomas Læssøe

https://svampe.databasen.org/observations/10587061

08-04-2026 20:33

Gyromitra sp. ?
Vasileios Kaounas Vasileios Kaounas

Found 07-04-26, in Abies cephalonica. Diameter 1,

08-04-2026 10:39

Littérature Korf
FRANCIS FOUCHIER

Bonjour , je recherche en pdf cet article: KORF R

06-04-2026 15:04

Gnomoniaceae
David Chapados David Chapados

Hi! Could someone help me identifying this specim

29-06-2016 15:18

Scopinella
Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Scopinella?
Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

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Hymenoscyphus similar to H. lutescens.
Mirek Gryc, 30-08-2020 20:29
Hi.

A few very young fruiting bodies grew on a pine cone. I found only one fruiting body with mature spores already present. Microscopic structure and substrate similar to H. lutescens. But I don't like the content of the spores.
There are two regular drops in each. Besides, the paraphyses content in Lugol does not turn red as in H. lutescens.


Porus reaction (+) bb
Spores: Me = 16 × 4.3 µm; Qe = 3.8


16.19 4.25
14.93 4.80
19.15 4.73
16.01 4.27
14.29 3.98
15.21 3.60


In spite of such a substrate and the appearance of spores, can this collection be classified as H. lutescens ??
Mirek

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Hans-Otto Baral, 30-08-2020 21:36
Hans-Otto Baral
Re : Hymenoscyphus similar to H. lutescens.
The colour and multiguttulate paraphyses point to Phaeohelotium epuphyllum.
Mirek Gryc, 30-08-2020 21:44
Re : Hymenoscyphus similar to H. lutescens.
Hymenoscyphus epiphyllus I took into account, but I rejected it because of the texture (ectal) not very compatible ??

I recently found Hymenoscyphus epiphyllus on Alnus cones ... tomorrow I will try to insert photos.

Hans-Otto Baral, 30-08-2020 22:00
Hans-Otto Baral
Re : Hymenoscyphus similar to H. lutescens.
The exciple is prismatic on the flanks in your section which is normal.
Mirek Gryc, 03-09-2020 19:54
Re : Hymenoscyphus similar to H. lutescens.
Thank you Zotto for your opinion!
Everything indicates that you are absolutely right.
I will not post photos of the new collection but I will try to explain what aroused my uncertainty. Watching H. epiphylus always saw in ectal ex. a narrow strip of cells of an oval shape. While examining these fruiting bodies, I didn't notice such cells, but probably due to the very young age of the fruiting bodies? Also, the dimensions of the spores are quite small for this species, but as I mentioned: the fruiting bodies are very poorly mature!
Today I found another collection growing on needles and cones Picea abies.
best regards
Mirek
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Hans-Otto Baral, 03-09-2020 21:33
Hans-Otto Baral
Re : Hymenoscyphus similar to H. lutescens.
I can only say about epiphyllus that the more basal cells are roundish and towards the margin they are elongate.
Mirek Gryc, 03-09-2020 21:41
Re : Hymenoscyphus similar to H. lutescens.
I noticed it too :)

Thank you!
Mirek