Step 1: Understanding the Question:
The question wants the botanical family of the tree that yields the dried juice drug kino.
Step 2: Key Concept:
Pterocarpus marsupium is classified by its flower and fruit structure, particularly its pea-shaped flower and pod fruit, which are the defining features of the legume family.
Step 3: Detailed Explanation:
The tree produces a red gum resin, kino, that exudes from cuts in the bark and dries into a brittle drug. Taxonomically the tree carries the typical papilionaceous, or pea-type, flower and legume pod fruit of family Leguminosae, also called Fabaceae, which sets it apart from the composite-headed Asteraceae, the rose-type flowered Rosaceae, and the bulb-forming monocot Liliaceae.
Step 4: Final Answer:
Leguminosae.