 This was l'Obel's second work, following publication of the "Stirpium adversaria nova" in London in 1570.This work was intended as a companion publication to his "Stirpium adversaria nova", and incorporates a revised version of the latter, as "Nova stirpium adversaria".L'Obel's first work was the "Stirpium aduersaria noua", published in London in 1571.