In mangrove vegetation, plants possess

(1) taproot

(2) stilt root

(3) pneumatophore

(4) haustorial roots

In the diagram of types of placentation given above 'A', 'B', 'C' and 'D' respectively represent

(1) basal, axile, parietal and free central

(2) free central, parietal, basal and axile

(3) axile, basal, parietal and free central

(4) parietal, axile, free central and basal

Which of the following has synandrous condition

(1) Colocasia

(2) Cucurbita

(3) Mimosa

(4) Ricinus

Following is not true of monocots

(1) most of the food of the seed is stored in endosperm

(2) have parallel veins in their leaves

(3) flower parts occur in fours

(4) flower parts occur in threes

Which floral family has (9) + 1 arrangement of anthers in the androecium?

1. Malvaceae

2. Rutaceae

3. Fabaceae

4. Caesal pinaceae

Clove is a

(1) floral bud

(2) modified root

(3) auxillary bud

(4) seed

Velamen is a specialized tissue found in

(1) aerial roots of orchids

(2) succulent leaves

(3) pneumatophores

(4) stilt roots

Coconut's husk fibre, coir of commerce is extracted from

1. epicarp

2. mesocarp

3.endocarp

4. all of these

When the filament runs throughout the length of anther, it is called

(1) adnate

(2) dorsi fixed

(3) versatile

(4) syngenesious

Which of the following is the largest root parasite?

(1) Rafflesia

(2) Areuthobium

(3) Monotrapa

(4) Pistia