Morphology of Flowering Plants - Description of families (Solanaceae, Fabaceae, Liliaceae)

Fabaceae (formerly Papilionoideae): This family is characterized by zygomorphic flowers ($\%$ ), a papilionaceous corolla with five petals ($C_{1+2+(2)}$), and diadelphous stamens ($A_{(9)+1}$). The ovary is superior, monocarpellary, and unilocular with marginal placentation ($G_{\underline{1}}$).

Solanaceae (Potato family): Flowers are typically actinomorphic ($\oplus$) and bisexual ($\text{\textdied}$). The calyx is persistent ($K_{(5)}$), and stamens are epipetalous ($\overbrace{C_{(5)} A_5}$). The gynoecium is bicarpellary and syncarpous with a superior ovary and swollen placenta (axile placentation) ($G_{(\underline{2})}$).

Liliaceae (Lily family): A characteristic monocot family. Flowers are actinomorphic and often have a perianth ($P$) instead of distinct calyx and corolla. The perianth members are often united into a tube ($P_{(3+3)}$). Stamens are epitepalous ($P A_{3+3}$), and the gynoecium is tricarpellary and syncarpous ($G_{(\underline{3})}$) with axile placentation.

Floral Formula Symbols: $\oplus$ denotes Actinomorphic, $\%$ denotes Zygomorphic, $\text{\textdied}$ denotes Bisexual, $K$ denotes Calyx, $C$ denotes Corolla, $P$ denotes Perianth, $A$ denotes Androecium, $G$ denotes Gynoecium, and $\underline{G}$ denotes Superior Ovary.

Economic Importance: Fabaceae provides pulses (Gram, Arhar); Solanaceae provides food (Potato, Tomato) and medicine (Belladonna); Liliaceae provides ornamentals (Tulip) and medicine (Aloe).