Gautam Manohar 31st Mar, 2019

Hey buddy,there are six types of ovules:

1. Orthotropous or atropous ovule-Polygonum.

2. Anatropous ovule- Gamopetalae members.

3. Hemi-anatropous or hemitropous ovule-Ranunculus.

4. Campylotropous ovule- Leguminosae.

5. Amphitropous ovule-Allismaceae, and Butomaceae.

6. Circinotropous ovule-opuntia.

Hope this helps, good luck

Shreya_1549549812 Student Expert 31st Mar, 2019

Hello Ram Mohan,

There are six types of ovules. They are as follows:-

• Orthotropous or atropous ovule- The body of the ovule is straight so that the micropyle, funicle, and chalaza all line up.
• Anatropous ovule- This type of ovule becomes inverted during development and the micropyle ends up close to the hilum.
• Campylotropous ovule- In this ovule type, the body is bent so that the chalaza and micropyle are not longer aligned. Also, the embryo sac has only a slight curve.
• Hemi-anatropous or hemitropous ovule- The ovule looks like it’s lying on its side because it is at a right angle to the funicle.
• Amphitropous ovule- This ovule is horseshoe-shaped due to the curvature of its body and the embryo sac.
• Circinotropous ovule-  A very long funicle almost completely encircles the ovule and the micropyle is pointing up.

Hope it helps you

Thank you