Whilst not being Fungi I did read somewhere that Billardia Longifolia (spelling ??) climbing blueberry was edible and remeber waxing lyrical to my Scouts to that effect on a trip into Lees Paddocks picking one and taking only a tiny nibble ,the effect on my tastebubs confirmed my thoughts as to why the birds dont eat them it took copious amounts of water to get rid of the acidic taste from my lips .
The moral of my tale is "let he who say it is good take the first big bite" and if in doubt only eat that which comes out of a known food source
(Admin Edit: This topic has been split out from an edible fungus topic from the Tucker forum.)