What is not true about sclereids ?

Sclereids are broad sclerenchyma cells which may be oval , spherical , cylindrical , or stellate in structure . Sclereids develop from sclerenchyma cells occur singly or in groups to provide stiffness. These may be of different types , such as brachysclereids (stone cells) found in grit of pear, apple , macrosclereids (stone cells) found in grit of pear, apple , macrosclereids (columnar), e.g legume seeds , astrosclereids (star shaped) , e.g. tea leaves, etc .