41. Identify the CORRECT family possessing the following characters: presence of glucosinolates,
tetradynamous stamens, superior ovary with parietal placentation and siliqua type fruit
(A) Brassicaceae
(B) Capparidaceae
(C) Fumariaceae
(D) Papavaraceae
Brassicaceae is the correct family matching all listed characters: presence of glucosinolates, tetradynamous stamens, superior ovary with parietal placentation, and siliqua-type fruit. The answer is (A) Brassicaceae. These traits define this mustard family, vital for exams in plant taxonomy and botany.
Core Matching Traits
Glucosinolates give Brassicaceae plants their pungent taste, like mustard and cabbage. Flowers feature tetradynamous stamens (four long, two short), a bicarpellary syncarpous superior ovary with parietal placentation, and siliqua fruits that split along two valves. This combination uniquely identifies the family.
Option Breakdown
Compare all choices using key floral and chemical features:
| Family | Glucosinolates | Stamens | Ovary/Placentation | Fruit Type | Match? |
|---|---|---|---|---|---|
| (A) Brassicaceae | Yes | Tetradynamous | Superior, parietal | Siliqua | Full |
| (B) Capparidaceae | Sometimes | Not tetradynamous | Superior, but variable | Capsule, not siliqua | No |
| (C) Fumariaceae | Absent | Equal-length | Superior, parietal | Capsule/achene | No |
| (D) Papaveraceae | Absent | Many, equal | Superior, parietal | Capsule | No |
Data confirms only Brassicaceae fits perfectly.
Why Brassicaceae Excels
Brassicaceae (formerly Cruciferae) includes crops like Brassica with cross-shaped tetramerous flowers, herbaceous stems, and economic value in agriculture. Advanced traits like syncarpous gynoecium and replum in siliqua distinguish it from close relatives. Exam questions target these identifiers for precise family recognition.
1 Comment
Sonal Nagar
January 15, 2026Brassicaceae