Morphology of Flowering Plants

The term 'polyadelphous' is related to

1. gynoecium
2. androecium
3. corolla
4. calyx.

How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?

1. Three
2. Four
3. Five
4. Six

Radial symmetry is found in the flowers of

1. Brassica
2. Trifolium
3. Pisum
4. Cassia.

Free-central placentation is found in

1. Dianthus
2. Argemone
3. Brassica
4. Citrus.

Among China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?

1. Three
2. Four
3. Five
4. Six

Axile placentation is present in

1. pea
2. Argemone
3. Dianthus
4. lemon.

Roots play insignificant role in absorption of water in

1. pea
2. wheat
3. sunflower
4. Pistia.

Perigynous flowers are found in

1. China rose
2. rose
3. guava
4. cucumber.

Keel is the characteristic feature of flower of

1. Aloe
2. tomato
3. tulip
4. Indigofera.

Leaves become modified into spines in

1. onion
2. silk cotton
3. Opuntia
4. pea