Background. Garlic mustard (Alliaria petiolata) is an invasive herb that has spread throughout much of the United States over the past 150 years, becoming one of the worst invaders of forests in the American Northeast and Midwest.ackground. Garlic mustard (Alliaria petiolata) is an invasive herb that has spread throughout much of the United States over the past 150 years, becoming one of the worst invaders of forests in the American Northeast and Midwest.
Mystery fiction. Mystery, 1934 mystery fiction magazine cover. Mystery fiction is a genre of fiction usually involving a mysterious death or a crime to be solved. In a closed circle of suspects, each suspect must have a credible motive and a reasonable opportunity for committing the crime.
Weâve always been fascinated with the macabre, and the horror genre is comprised of numerous different approaches to exploring our deep-seated fears. What follows is a list of the main horror sub genres which have arisen out of the movie industry to date.