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09-08-2022 20:06

Stephen Mifsud Stephen Mifsud

I have found an interesting aspergillus on flowers

06-08-2022 22:20

Marcus Yeo

I found this ascomycete today on dead leaves of Er

16-07-2022 17:01

Zetti Mario

Hi, I am doing some work with microfungi and durin

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Pierre-Yves Julien

Récolte le 31/07/2022 – Ozoir-la-Ferrière (77)

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Louis DENY

Au bord d'un étang près de Belfort (alt 400m) su

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Lothar Krieglsteiner Lothar Krieglsteiner

near Snasa, on mixed lawn with Nowellia curvifolia

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Josep Torres Josep Torres

Hola.Un líquen sobre la corteza de un tronco de p

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Stefan Jakobsson

A light-coloured Hymenoscyphus growing on a cone o

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Josep Torres Josep Torres

Hola.Un liquen cortícola fotografiado este pasado

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Lothar Krieglsteiner Lothar Krieglsteiner

on decorticated branch of surely Betula (as there

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Jelly Fungi on Hypogymnia tubulosa
Rajamaki Martti, 16-01-2014 20:43

I made observations about two jelly fungi last week. This one was on Hypogymnia tubulosa. Area was parklike with small houses. 9.1.2014, Riihimäki, Finland.

- Martti
  • message #26845
Enrique Rubio, 16-01-2014 20:50
Enrique Rubio
Re : Jelly Fungi on Hypogymnia tubulosa
Tremella hypogymniae Diederich & M.S. Christ. in Diederich, Biblioth. Lichenol. 61: 90 (1996) is a possibility
Alain GARDIENNET, 16-01-2014 21:27
Re : Jelly Fungi on Hypogymnia tubulosa

Yes, Enrique is probably right (and fast !). But microscopy could be useful.


Enrique Rubio, 16-01-2014 23:43
Enrique Rubio
Re : Jelly Fungi on Hypogymnia tubulosa
Not useful but imprescindible...
Rajamaki Martti, 17-01-2014 09:37
Re : Jelly Fungi on Hypogymnia tubulosa
Thanks really much! I have sent this picture to one woman who has researched Tremella species in Finland. He hasn´t seen Tremella hypogymniae fresh sample (only dry) and she thought that it is brown spot or something like that. Does Tremella hypogymniae really looks like this fungi in picture when it is fresh? I haven´t any good pictures or photos...
Alain GARDIENNET, 17-01-2014 10:37
Re : Jelly Fungi on Hypogymnia tubulosa

Actually 45 Tremella species occur on lichens. And probably more are undescribed.

I don't know if H. hypogymniae looks like that. Tremella quickly have differents appearences with different hygrometry.

Here is a photo of H. hypogymniae by Paul Diederich who is the specialist of lichenicolous Tremella.

Another species is known on Hypogymnia : H. papuana but I suppose that it isn't a european species.


Rajamaki Martti, 17-01-2014 10:44
Re : Jelly Fungi on Hypogymnia tubulosa
Thanks! Really interesting!

Can Exidia grows on lichen? Many has said that this can be maybe Exidia cartilaginea. I made an observation about same style jelly on Malus domesticus on different style lichens...
Alain GARDIENNET, 17-01-2014 11:00
Re : Jelly Fungi on Hypogymnia tubulosa

No, in my knowledge ,there isn't lichenicolous Exidia.

But is it impossible ?

That's the reason why a complete description of your fungus is useful.

Here the latin diagnosis of H. hypogymniae. Unfortunately, I haven't the book of P. Diederich Biblioth. Lichenol. 61: 90 (1996)

Tremella hypogymniae Diederich & M. S. Christ. sp. nov.
Basidiomata lichenicola in thallo Hypogymniae, gallas superficiales, incarnatas, convexas, basim non constrictas, 0.4-1.8 mm in diam. efficientia. Hyphidia nulla. Basidia 2-cellularia, septo longitudinali, obliquo vel transversali, 11-16 x 7-12 pm. Basidiosporae 7-10 x 5.5-7 µm. Cellulae conidiogenae claviformes ad cylindricae, 21-35 x 5-9 µm, immaturae, asteroconidia nulla.

Unfortunately, I haven't the book of P. Diederich : Biblioth. Lichenol. 61: 90 (1996).




Kendra E. Driscoll, 11-04-2015 20:34
Kendra E. Driscoll
Re : Jelly Fungi on Hypogymnia tubulosa


I haven't seen fresh Tremella hypogymniae (only one dry herbarium specimen), but I wouldn't expect it to be as thick and translucent as this. Other lichenicolous Tremella species I'm familiar with are very small compared to better known species found in fungus field guides, forming a fairly thin hymenium over galls. Tremella hypogymniae should induce the formation of galls on the host, which are not evident here. Cystobasidium hypogymniicola is another heterobasidiomycete which is pretty common on Hypogymnia in my region (Atlantic Canada), but it definitely doesn't look like this.

Perhaps it is Excidium as you suggest, in which case it is interesting to wonder whether it is closely associated with the Hypogymnia or just growing there opportunistically... Neat.

Best Regards,