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23-04-2024 13:17

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 15:18

Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 21:49

Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

22-04-2024 08:54

Rafael Cabral

Bonjour à toutes et tous, Quelqu'un pourrait-il

22-04-2024 20:38

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon.Does anyone know this anamorph?It g

21-04-2024 14:29

B Shelbourne B Shelbourne

• Genus Brunnipila: Distinct macro and habitat,

19-04-2024 14:28

B Shelbourne B Shelbourne

Cudoniella tenuispora: Distinctive macro and habit

20-04-2024 16:02

Michel Hairaud Michel Hairaud

Bonjour,On me fait part, pour diffusion d une list

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

Hi,


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: https://inaturalist.org/observations/61427186


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


Thanks you,
Igor

  • 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.