Pirate's crop is the one i've never done.
Odd; I went back to talk to bare hornet (after reading this list) and he doens't offer me the quest. I did her weight in gold; not sure how you trigger this quest - no wonder I never did it
Ok. The other quest was The enthrallment of Bogis - my quest book marks it as failed because i never claimed the reward; but there is a sequence that will prevent you from being allowed to claim the reward (maybe i did something out of order).
So now the big unknown is why i never get the pirate's crop...