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22-02-2021 21:55

Marcel Vega

Hi friends, my friend Torsten recently received s

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Elisabeth Stöckli

Bonsoir, sur écorce de Fraxinus (pâturages bois

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Jorge Guzmán

Hola a todos!He encontrado esto que creo podría s

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Bonsoir à toutes et tous,Pourriez-vous me confirm

02-03-2021 14:52

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

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Mirek Gryc

Hi.They grew massively on the decaying wood of Sal

02-03-2021 13:43

Castillo Joseba Castillo Joseba

Recolectada en zona de pinos y eucaliptos,  con a

02-03-2021 21:29

Riet van Oosten Riet van Oosten

Hello,Found today (02-03-2021) on Typha spec.Is Ar

02-03-2021 16:01

Garcia Susana

Hola, He encontrado estos peritecios y me gustar

25-02-2021 17:28

Pierre-Arthur Moreau Pierre-Arthur Moreau

Bonjour à tous,Un étudiant en Master 2 du CEFE d

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Hymenoscyphus on Picea needles IKI-, H+
Khomenko Igor, 19-01-2021 15:09
Khomenko Igor


On spruce (Picea) needles, small, white discomycete fungi.
White stipitate apothecia around 1.5mm in diameter.
8-spored asci IKI- even after KOH, croziers(+), 92.7 - 96 × 7.42 - 7.7 µm;

Spores 10.2 - 12.8 x 3.1 - 3.9 µm; Q = 2.8 - 4; N = 30,  Me = 11.6 x 3.6 µm

more pictures:

Microscopy is similar to Hymenoscyphus sulphuratus, but it is pure white and it was matured. Are there any other options?

Thanks you,

  • message #67152
Hans-Otto Baral, 19-01-2021 16:55
Hans-Otto Baral
Re : Hymenoscyphus on Picea needles IKI-, H+
At least I can say you need to turn all spores upside down :-)

Reminds me of Hymenoscyphus lutescens but that has amyloid asci and is on conifer wood.
Khomenko Igor, 19-01-2021 21:58
Khomenko Igor
Re : Hymenoscyphus on Picea needles IKI-, H+
Thank you, Zotto,
I'm going to try to remember where a tail and a head are, but it is not that clear to me.
Hans-Otto Baral, 20-01-2021 08:42
Hans-Otto Baral
Re : Hymenoscyphus on Picea needles IKI-, H+
I helotiales it is principally always so that the broader end is the upper end - for aerodynamical reasons ecause the spores are ejected one after the other. You can check this inside the asci.
Khomenko Igor, 20-01-2021 23:58
Khomenko Igor
Re : Hymenoscyphus on Picea needles IKI-, H+
Thank you for explaining. 
These spores remind me of a paramecium, so I always want to place the wider side down.