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15-09-2021 12:41

Mirek Gryc

Hello allDear forum members, are my suspicions cor

16-09-2021 22:08

jean claude chasle

Bonsoir, Récolté en milieu humide sur brindille

15-09-2021 19:48

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte d'Alnus alnobetula, en

16-09-2021 12:07

Castillo Joseba Castillo Joseba

De ayer en corteza de fagusA ver si hay alguna sug

15-09-2021 17:52

Ueli Graf Ueli Graf

The ostropalean fungi (Mycotaxon) 1977 von Martha

12-09-2021 12:18

Andgelo Mombert Andgelo Mombert

Bonjour, Sur tige morte d'Equisetum sp., vers 200

14-09-2021 19:26

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tiges mortes d'Epilobium angustifoli

14-09-2021 19:01

Juuso Äikäs

I found some small Lachnum-like fungi a couple day

09-09-2021 15:18

Maria Plekkenpol

Hello,On pieces of acorn cap buried in the ground

14-09-2021 19:41

Enrique Rubio Enrique Rubio

Could someone give me a copy of this item?Coniocha

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Ombrophila-like (?) from the mine
Marek Capoun, 28-07-2021 22:14
Marek CapounHello everybody, I need help with the determination of this Ombrophila-like (?) asco.
Collected in a metal ore mine, where the temperature is constant around 8 degrees throughout the year, with very high humidity, the entrance to the mine at altitude cca 620 meters.
It grows on a supporting strut from a trunk of Abies (very probably - the local attendant said).
Ascomata max. 4 mm on average, stalked, in youth whitish, later turn red during the maturation or drying.
Microscopy with the partially dried material unfortunately. Ectal excipulum with vertical textura prismatica, medulla gelatinous. A lot of crystals up to 12 µm large sometimes.
Asci with croziers, 80-120 µm long, IKI with blue reaction on the lower part of the ring. Paraphyses cylindrical, sometimes wider slightly or curved at the top, with large VBs.
Ascospores hyaline, one–celled, elliptical or narrowly ovoid, Me = 7.5 × 4 µm, Qe = 1.9; with 2 LBs.
Thanks for your help.
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Hans-Otto Baral, 29-07-2021 09:12
Hans-Otto Baral
Re : Ombrophila-like (?) from the mine
This is an Ombrophila for sure, and perhaps O. violacea, the type species of the genus. Good would be to give the range of spore size. I estimate 7-8.5 x 3.8-4.2. Literature data say 6-11 x 3-4 for this species. The apical ring is perfect for this species.
Marek Capoun, 29-07-2021 22:50
Marek Capoun
Re : Ombrophila-like (?) from the mine
Your guess is accurate, hats off :-)
6.8-8.3 × 3.7-4.2.