Morphology of Flowering Plants

Which of the following is not a stem modification?

1. Tendrils of cucumber
2. Flattened structures of Opuntia
3. Pitcher of Nepenthes
4. Thorns of Citrus

Stems modified into flat green organs performing the functions of leaves are known as

1. phylloclades
2. scales
3. cladodes
4. phyllodes.

Cotyledon of maize grain is called

1. coleoptile
2. scutellum
3. plumule
4. coleorhiza.

Tricarpellary, syncarpous gynoecium is found in flowers of

1. Fabaceae
2. Poaceae
3. Liliaceae
4. Solanaceae

The standard petal of a papilionaceous corolla is also called

1. vexillum
2. corona
3. carina
4. pappus.

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