Accès membres

Mot de passe perdu? S'inscrire

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 23:29

Juuso Äikäs

I found these in a Picea abies dominated forest in

11-12-2019 23:25

Ethan Crenson

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

11-12-2019 22:21

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et tous,Pourriez-vous me confirm

09-01-2015 12:57

Alan Rockefeller Alan Rockefeller

I found this in a semitropical area of Queretaro,

05-01-2019 14:57

Edvin Johannesen Edvin Johannesen

These orange "jelly"-like apothecia grow at the ap

11-12-2019 16:42

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,Même s'il ne s'agit pas

05-12-2019 19:35

Ibai Olariaga Ibarguren

Dear colleagues, I was wondering if anyone could

09-12-2019 12:05

PASCAL DUBOC

Bonjour cette colonie de pustules orange sur vieu

09-12-2019 21:35

William Slosse William Slosse

Yesterday I found this species on the underside of

« < 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