Dear Mr Lehmann,
I read your entry here:
http://www.bio.net/bionet/mm/mycology/1996-September/004542.htmlI am living in Switzerland and was confronted with the discussion Macrolepiota venanata vs. M. rhacodes var. hortensis (syn. M. bohemica???) these past days.
You commented "
By the way, according to A Bresinsky and H Besl, Colour Atlas of Poisonous
Fungi, there is a poisonous look alike which seems to be a "garden form"
of L. rhacodes. This was described as L. rhacodes var. hortensis which
might also have been misidentified as a a new species Macrolepiota
venenata.The M. rhacodes var. hortensis is referred to here as the 'garden type' of the M. rhacodes, which grows here on the forest edge or along paths. The M. rhacodes var. hortensis is very good to eat and definately not poisonous or difficult to digest.
Most likely I am not providing you with any information which you do not already possess, but nonetheless, maybe something will be of value to you. The below entry helped us the most, the list of differences between the two var. proved in practice to be accurate and quite easily confirmed, at least when the two examples are next to each other. When these characteristics are respected, all doubts can be curbed.
http://www.pilzepilze.de/cgi-bin/webbbs/parchive2003.pl?noframes;read=57305hopefully you also have time to wander through a forest collecting mushrooms, reaping from your knowledge. happy hunting!
Vinxi
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