Cotyledons absent in seed of

Options

A. Capsella
B. Cuscuta
C. Santalum
D. 2 and 3 both

Answer

To determine which seed has absent cotyledons, we can analyze the options provided:

1. **Capsula**: This plant has two cotyledons that develop near the shoot apex, forming an embryo that resembles a heart. Therefore, cotyledons are present in capsula.

2. **Cascata**: This is a genus of parasitic plants, specifically dodder, which does not have cotyledons. It is known to be a parasite on a wide variety of plants, including agricultural crops. Hence, cotyledons are absent in cascata.

3. **Centelum**: This genus refers to woody flowering plants, and the best-known species is the Indian sandalwood tree, which has two cotyledons. Therefore, cotyledons are present in centelum.

After analyzing all the options, we conclude that the correct answer is:

**Cascata** (option number 2) is the seed in which cotyledons are absent.