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05-07-2025 12:38

Pyrenomycetous fungi on dead Juniperus twig
Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

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me mandan el material de Galicia (España) recolec

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Hello.A fungus growing on the surface of a trunk o

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En tallo de herbaceas 1102
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me mandan el material seco de Galicia (España) 

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Melampsora ??? en Salix
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me mandas el material seco de Galicia (España) re

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Hypoxylon ticinense in Italy
Mario Filippa, 04-02-2015 01:29
In October I found what seemed a corticioid fungus, on hardwood.
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Mario Filippa, 04-02-2015 01:35
Re : Hypoxylon ticinense
At first only hyphae were visible. After some days, towards the centre there were many subglobose conidia, 4-5 µm mostly, with yellowish contents, and bright orange granules.
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Mario Filippa, 04-02-2015 01:38
Re : Hypoxylon ticinense
On february 1st I found the mature stromata, with developed perithecia and very small ostioles.
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Mario Filippa, 04-02-2015 01:48
Re : Hypoxylon ticinense

Despite it seemed rather young, I did not found a single ascus in the perithecia, only spores and irregular, hyaline hyphae.


Spores 6-8x3-4 µm, brown (a little olive tinged in KOH), inequilateral; with a long germ slit on the more round side, rather difficult to see. Perisporium separating in KOH.


I think there are no doubts, Hypoxylon ticinense. But I never found it before so a confirmation will be appreciated.


Thanks in advance.


Mario

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Jacques Fournier, 04-02-2015 08:57
Jacques Fournier
Re : Hypoxylon ticinense in Italy
Hi Mario,
yes typical ticinense. It's fine you could follow the development over several months.
Jacques
Mario Filippa, 04-02-2015 11:01
Re : Hypoxylon ticinense in Italy
Thank you Jacques,
actually at first I had not idea on what it could be...
Now I will try to identify the host; is a dead fallen branch in a mixed wood.
Regards
Mario
Beñat Jeannerot, 06-02-2015 06:44
Beñat Jeannerot
Re : Hypoxylon ticinense in Italy
Adio Mario,

Only a repartition area remark :
It's a very common species here (french basque country).
If you are in a little river, you can find it on all branches fallen in or near the stream.
More common than Scutellinia crinita, if you see what I mean !!
Light orange to yellow-red color is very typical in fact.

Beñat

Mario Filippa, 11-05-2020 12:40
Re : Hypoxylon ticinense in Italy
After several years, I can complete this topic.
The host was Cornus sanguinea. The spot is a mixed wood around a wet area with Alnus glutinosa. Around the alders there are a lot of different trees and shrubs (only broadleaved), and I have found H. ticinense several times, always and only on Cornus, and always on dead branches (standing or fallen) at least 4-5 cm diameter, never seen on twigs.
During the collection I had to saw the wood sometimes; it has a strong and very characteristic smell, as reported by Vittadini, identical to the smell of Tuber brumale!
Regards
Mario