Piptoporus saprophyte or parasite?

[Jan Bosselaers]

Dear Taxacomers,

I would be very grateful for any help in finding literature references
on the question whether the basidiomycete Piptoporus betulinus is mainly
a saprophyte or a parasite.

Best wishes,

Jan
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Jan Bosselaers
"Dochterland", R. novarumlaan 2
B-2340 Beerse, Belgium                       tel 32-14-615896
home: dochterland at village.uunet.be      fax 32-14-610306
work: jbossela at janbe.jnj.com
web: http://gallery.uunet.be/Dochterland/
"Otium sine litteris mors est et hominis vivi sepultura" Seneca
(Spare time without reading is like being buried alive)