A phrase I picked up from Jim Willis, the botanist who wrote the (now out of print and probably out of date) book on fungal taxonomy in Victoria (Oz). When describing the differences between "edible and palatable", "edible but unpalatable", "inedible" and "poisonous" he mentioned those who gathered and ate fungi in the following terms;
"There are old and there are bold eaters of fungi, but very few of the old are bold and very few of the bold grow old."