Which one of the following statements is not correct?

Rhizome: It is a thick stem growing horizontally, beneath the soil surface. It has distinct nodes and internodes.  The nodes bear small scaly leaves with buds in their axils. These buds develop into aerial shoots during favourable conditions. The tip of the rhizome ends in a terminal bud. The lower surfaces of the nodes give out small slender adventitious roots.  E.g., Ginger, turmeric, banana.

Tuber: It is the swollen tip of a special underground branch. Each tuber has many notches on the surface called ‘eyes’ or buds that grow into new plants. Adventitious roots are usually absent in a tuber. E.g., Potato.