初中《植物学》第191页上有这样一道题:“蕨有主根和侧根吗?为什么?”出此题的目的是考察学生能否正确理解主根、侧根和不定根的概念。《教学参考书》提示:蕨的植株上长的是不定根,原叶体上长的是假根,由于他们都不是由种子中的胚根发育而成的,所以蕨既无主根又无侧根。 In the junior high school “Botany” on page 191 there is such a question: “Do ferns have roots and lateral roots? Why?” The purpose of this question is to examine whether students can correctly understand the concepts of main root, lateral root and adventitious root. The “Teaching Reference Book” suggests that the fern plants have adventitious roots on the tops of the fern plants and the false roots on the protoplasts. Since they are not developed from the radicles in the seeds, the ferns have neither the main root nor the lateral roots.