Black spot, Diplocarpon rosae, is probably the most common disease found on roses and the one most people will recognise as a problem. It is a fungal disease.

A black mark on a piece of paper that means “We’re going to get ya” or somethin’ like that.

To "place the Black Spot" on another pirate is to sentence him to death, to warn him he is marked for death, or sometimes just to accuse him of a serious crime before other pirates. [..]

To "place the Black Spot" on another pirate is to sentence him to death, to warn him he is marked for death, or sometimes just to accuse him of a serious crime before other pirates.