Abstract: Eichhornia crassipes Solms is a common water plant widely distributed in China. The floating roots of which are often used as a laboratory material for demonstrating the growing point in the root. It has been enonemously considered by some anatomists that the root-tip contains four separate groups of initials which subsequently differentiate into four zones: root-cap, epidermis, cortex and stele. After careful re-examination, it is found that the root-tip contains only three groups of initials: calyptrogen, epidermo-cortical initials and pierome, and the auther agrees with the early workers who related this plant to the type of most Gramineae plants (e. g. Zea mays). The misrepresentation obviously arises from the fault that the sections were not strictly median.