Which of the organisms are called jewels of the plant world? Elaborate about them

cbse
biology

#1

Diatoms are called the jewels of the plant kingdom. Because of cell wall ornamentation and presence of golden brown chromatophores.
There are two types of diatoms, i.e., the pennate diatom and centric diatom, pennate diatoms are like small rectangular soap boxes. Centric diatoms are circular.