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15-10-2019 21:47

Stephen Mifsud Stephen Mifsud

Hi, my eye fell on a dead stalk of a herbaceous pl

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15-10-2019 05:23

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Dear friends.Looking for a copy of the following w

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Dear friends.Looking for a copy of the following w

14-10-2019 20:00

Michael Haldeman

This collection is from bark at the base of a dead

12-10-2019 22:16

Michael Haldeman

I found this fungus on the thallus of Ochrolechia

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Hello all.A few days ago I found Peziza which I in

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Hi there, I have here a Calycina sp. which I cann

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Hello, On the culm of Phragmites australis (on th

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Ethan Crenson

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Fungi on lichen (Cladonia gracilis)
François Bartholomeeusen, 09-10-2019 22:13
Dear forum members,

I have no experience with lichens, let alone with mushrooms on lichens!

On the podetia of Cladonia gracilis (not 100% sure of the determination) I found brown/black ascomata (diameter: 286-317 µm). After making five preparations I didn't succeed in finding free spores and the microscopic pictures are anything but excellent.
No reaction in Melzer, texture and/or paraphyse with brown pigments.
Can someone help me with the identification?

Using a key I found in the publication of Mikhail P. Zhurbenko and Raquel Pino-Bodas (A revision of lichenicolous fungi growing on Cladonia ...) I determine the apothecia as Brackelia lunkei. The podetia are bleached in the places where the ascomata occur. Could this fungi be parasitic?
Am I right or am I completely mistaken? Thank you in advance for all your help.

François Bartholomeeusen

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Hans-Otto Baral, 10-10-2019 09:05
Hans-Otto Baral
Re : Fungi on lichen (Cladonia gracilis)
Hi Francois

I hear the name Brackelia the first time, and I do not have the paper of 2017. I would be glad you could send me.
François Bartholomeeusen, 10-10-2019 09:16
Re : Fungi on lichen (Cladonia gracilis)
Hi Zotto,

No problem, attached to the article maybe other persons are also interested.
Kind regards,

Hans-Otto Baral, 10-10-2019 09:26
Hans-Otto Baral
Re : Fungi on lichen (Cladonia gracilis)
Thanks! There is indeed some similarity, but it is not easy to compare because the type was described in dead state.  But it coud well be this species. Where did you collect it?

Your pics lack a scale, while the statement 1000x is useless for me when I want to measure.
François Bartholomeeusen, 10-10-2019 17:05
Re : Fungi on lichen (Cladonia gracilis)
Your right, I have to find a way to work out a scale...

I collected the Cladonia gracilis on 27 september 2019 in Belgium, 2460 Kasterlee, in the nature reserve "Grote Heide"  which is a part of a "sleeping" land dune "Kempense Heuvelrug". 
GPS 51.2080, 4.8826
Lambert 1972 185908 211018