Accès membres

Mot de passe perdu? S'inscrire

14-04-2026 21:52

Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

14-04-2026 20:31

Gernot Friebes

Hi,can this be Psilachnum lateritioalbum on Phragm

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

12-04-2026 15:52

Gernot Friebes

Hi,I'm looking for help with this anamorph collect

12-04-2026 12:22

William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

11-04-2026 15:45

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

11-04-2026 13:34

Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Castillo Joseba Castillo Joseba

Me mandan el material de Galicia, España, recolec

11-04-2026 10:19

Michel Hairaud Michel Hairaud

Chers amis d'Ascofrance , voici une très bonne no

« < 1 2 3 4 5 > »
Melanconis alni?
Enrique Rubio, 07-04-2013 17:47
Enrique RubioDear friends
Can this fungus with so short and roundish appendages be Melanconis alni ?
It grew on Alnus glutinosa and the valsoid stromata have yellowish disc 


Thanks again
  • message #22856
  • message #22856
  • message #22856
Björn Wergen, 07-04-2013 18:22
Björn Wergen
Re : Melanconis alni?
Hi Enrique,

your collection more reminds me on M. chrysostroma than on M. alni, which has very distinct and long appendages.

regards,
björn
Enrique Rubio, 07-04-2013 18:27
Enrique Rubio
Re : Melanconis alni?

Hi Björn

But chrysostroma is not a fungus on Carpinus? My host is Alnus..
Chris Yeates, 07-04-2013 20:25
Chris Yeates
Re : Melanconis alni?
Good evening Enrique
The spores seem a little on the large size, but in general it looks all right; do you have Wehmeyer's 1941 "Revision"?
cordialement
Chris
Enrique Rubio, 07-04-2013 20:43
Enrique Rubio
Re : Melanconis alni?
Good evening, Chris
Yes. I have read Wehmeyer's paper but he says 'the spores often show terminal appendages.......... wich measure 3-7 x 2-4.....'
The appendages of my spores are shorter, up to 2 microns only

Thanks!
Chris Yeates, 07-04-2013 20:55
Chris Yeates
Re : Melanconis alni?
he also says thats they are evanescent or may be completely lacking; I wonder how important the length is - while looking at various Gnomonia species recently it has struck me that appendage length can be a very plastic character - I stand to be corrected.
best wishes
Chris
Jaklitsch Walter, 08-04-2013 13:19
Re : Melanconis alni?
Melanconiella flavovirens on Corylus, very typical.

See here http://link.springer.com/article/10.1007/s13225-012-0175-8
Unfortunately not open access, but I can send a copy on request.
Best regards,
Walter
Enrique Rubio, 08-04-2013 14:23
Enrique Rubio
Re : Melanconis alni?
Thanks, Walter!!
Jaklitsch Walter, 08-04-2013 15:09
Re : Melanconis alni?
You are welcome.

Perhaps a few words about this topic:
we know since 2002 (Castlebury et al., Mycologia) that Melanconis is polyphyletic.
Most species are in Melanconiella. We had to "kill" M. chrysostroma, unfortunately.

We have not published on Melanconis yet, but there are not so many species left. Some like e.g. M. carthusiana do not belong to these genera despite superficial similarity of both teleo- and anamorphs.

Best regards, Walter
Enrique Rubio, 08-04-2013 17:32
Enrique Rubio
Re : Melanconis alni?
Thanks again