Accès membres

Mot de passe perdu? S'inscrire

15-11-2021 16:37

Hymenoscyphus on Rubus
Chris Yeates Chris Yeates

Bonjour Continuing my work on fungi on Rubus I re

14-11-2021 15:59

Yellow-brown cup with ionomidotic reaction
Ethan Crenson

Hello all, Found recently in New York.  These sm

15-11-2021 11:19

Perilachnea flavobrunnea
Dragiša Savic

Hi to allThe first time i see them, i hope i wasn'

15-11-2021 07:14

Cordyceps?? on beetle larva.
Zuidland Peter

Hello all,Here is a new parasitic fungi for me on

14-11-2021 17:27

Small whitish cups on wood - Hymenoscyphus?
Lepista Zacarias

Hi everybody,In a recent field trip to the Park in

14-11-2021 15:47

Rubus fruticosus disco
Chris Yeates Chris Yeates

Bonjour tous I have been doing some collecting on

14-11-2021 10:11

Orbilia ???
Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia, recolectado

09-11-2021 19:25

Coccomyces??
Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos.Subo unas fotos de un asco que encont

14-11-2021 16:03

Yellow-brown cup with ionomidotic reaction
Ethan Crenson

Hello all, Found recently in New York. These smal

09-11-2021 20:00

Podophacidium
Ronald Morsink

Hello, I found these small black ascomycetes on t

« < 283 284 285 286 287 > »
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.