What is sclereid? Md. Saifur Rahman Sclereids are hard, short, isodiametric, or sometimes long and star-shaped sclerenchyma cells found mostly in the cortex, fruits and seed shells of gymnosperm, etc.You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?