Question

Match the following:1)Campylotropous -a)Cactaceae,2)Amphitropous -b)Primulaceae,3)Cirinotropous -c)Leguminodae,4)Hemianatropous -d)Alismatacea​

Answer 1

Answer:

1.Campylotropous - c) Leguminodae

2.Cirinotropous - a) Cactaceae

3.Hemianatropous - b) Primulaceae

4.Amphitropous - d) Alismatacea

Answer 2

1) Campylotropus     c) Leguminodae

2) Amphitropus        d) Alismatacea

3) Cirinotropus         a) Cactaceae

4) Hemianatropus    b) Primulaceae

TYPES OF OVULES IN ANGIOSPERMS -

Ovules are divided into six types based on the relative position of the parts of the ovule -

• Campylotropous - Curved ovules such that microphyle opening chalaza are not aligned with each other.
• Amphitropous - Ovule is curved or bent such as the ovule looks like a horseshoe. Example - Alismatacea, Butomacea
• Circinotropus - The long funicle covers the ovule so that the nucellus and the axis lie in the straight line and the microphyle points upwards. Example - Opuntia
• Hemianatropous - Funicle is at a right angle to the body of the ovule. The microphyle and chalaza seem to be lying in a straight line. Example - Ranunculus