To solve this problem, we need to identify the characteristics of stamens specific to the family Fabaceae that are not found in Solanaceae or Liliaceae.$\newline$Let's analyze the stamen characteristics of each family:$\newline \bullet$Fabaceae:$\newline$ - The stamens in Fabaceae are typically diadelphous, meaning they are united into two groups.$\newline$ - The anthers are dithecous, which means they have two lobes.$\newline \bullet$Solanaceae:$\newline$ - The stamens in Solanaceae are usually epipetalous, meaning they are attached to the petals.$\newline$ - The anthers are typically dithecous.$\newline \bullet$Liliaceae:$\newline$ - The stamens in Liliaceae are often epiphyllous, meaning they are attached to the perianth.$\newline$ - The anthers are dithecous.$\newline$From this analysis, we can see that the characteristic of being diadelphous is specific to the family Fabaceae.$\newline$Therefore, the correct option is:$\newline$Option 1: Diadelphous and Dithecous anthers.