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12-12-2019 18:36

Roland Labbé

Bonjours ! Voici un Trichoderma (Hypocrea) inconn

11-12-2019 23:29

Juuso Äikäs

I found these in a Picea abies dominated forest in

14-12-2019 10:09

Marc Detollenaere Marc Detollenaere

Dear forum,   On a decorticated trunk of Populu

13-12-2019 20:42

Götz Palfner Götz Palfner

Bonjour tous,Sorry, but as my French is crap, I wi

11-12-2019 22:21


Bonsoir à toutes et tous,Pourriez-vous me confirm

08-12-2019 11:01

Gilbert MOYNE

Bonjour, Un petit champignon que m'a remis Andgel

13-12-2019 16:20

Chris Yeates Chris Yeates

Bonjour tous this is an area I feel rather ignora

12-12-2019 23:42

Maren Kamke Maren Kamke

Hello together, can someone provide me with this

07-12-2019 22:22

Rubén Martínez-Gil Rubén Martínez-Gil

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

11-12-2019 23:25

Ethan Crenson

Hello all,This was found by a friend in New York C

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Xylariaceous fungus on Acacia melanoxylon
Enrique Rubio, 12-08-2015 21:20
Enrique RubioHi to everyone

This superficial, globose, finely craked, blackish-brown stromata, 10 mm high 15 mm broad is narrowly attached on bark of Acacia melanoxylon together with stromata of Daldinia sp., Jumillera cinerea and Nemania aureolutea.

The small monostichous perithecia are more or less globose, 0.6-0.8 x 0.5-0.7 mm, with a roundish conspicuous papilla

KOH-extractable pigments brightly greenish. Asci long stipitate 225-262 x 9-10, pars sporifera 142-160, 8-sspored, with a conspicuous hat shaped apical apparatus deeply blue in Mlz. and IKI, longer than broad. Ascospores olive brownish, 21-27 x 7-8.5, with a germ-slit shorter spore lenght on the less convex side. Perispore indehiscent in KOH.

Could be a penzigioid Xylaria species? Are normal the existence of KOH-extractable pigments for these fungi?

Thanks again

  • message #37439
  • message #37439
  • message #37439
  • message #37439
Jacques Fournier, 13-08-2015 14:48
Jacques Fournier
Re : Xylariaceous fungus on Acacia melanoxylon
Hola Enrique,
this is indeed a nice penzigioid Xylaria matching no known species in the literature. You are right, the greenish pigments in KOH are rarely encountered in this genus, they are just known from tropical taxa like X. telfairii or X. olobapha and relatives. Moreover the reddish brown coating and the ascospore morphology set it apart from species with similar stromata.
Xylariaceae are often endophytic and they likely travelled with their host from Australia and like your Daldinia represent extra-European species.
I suggest you send the Xylaria to Yu-Ming Ju in Taiwan who is very interested in penzigioid taxa and who will cultivate it. If the material is plentiful, I would be happy to have some stromata too...
Enrique Rubio, 13-08-2015 14:56
Enrique Rubio
Re : Xylariaceous fungus on Acacia melanoxylon

Hi Jacques

Allways your magical help!

I can send you the only one stromata that I have found. Do you want it? The Daldinia species on Acacia m. with greenish pigments will be sent to Marc Stadler for to study it.

Thanks again

Jacques Fournier, 13-08-2015 14:58
Jacques Fournier
Re : Xylariaceous fungus on Acacia melanoxylon
I would like to be more helpful!
Yes, send it over, I will forward it to Yu-Ming.
Enrique Rubio, 13-08-2015 17:03
Enrique Rubio
Re : Xylariaceous fungus on Acacia melanoxylon
I'll send you it,Jacques . And many thanks again