05-03-2026 10:07
Hulda Caroline HolteHello, I found and collected this species growing
05-03-2026 16:30
François BartholomeeusenDear forum members, On the 2nd of February 2026,
19-02-2026 17:49
Salvador Emilio JoseHola buenas tardes!! Necesito ayuda para la ident
03-03-2026 20:34
Miguel Ángel Ribes
Good eveningThese small, amphora-shaped perithecia
01-03-2026 18:02
Francois Guay
I found this mystery Helotiales on an incubated le
28-02-2026 14:43
Alain GARDIENNET
A new refrence desired :Svanidze, T.V. (1984) Novy
Melanconis alni?
Enrique Rubio,
07-04-2013 17:47
Dear friendsCan 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
Björn Wergen,
07-04-2013 18:22
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
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
Re : Melanconis alni?
Hi Björn
But chrysostroma is not a fungus on Carpinus? My host is Alnus..
Chris Yeates,
07-04-2013 20:25
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
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
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!
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
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
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
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
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
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
Re : Melanconis alni?
Thanks again