Excerpt from The Elements of Botany
The Elements of Botany appeared in 1895, and with a few alterations was stereotyped in the following year. I take the present opportunity of correcting one or two obscurities or mistakes. If the book could have been rewritten it might have been advisable to introduce the conception of the stele, which helps to make clear the identity of the central vascular cylinders of the Dicotyledonous stem and root - a point in which the older terminology is less effective. For this purpose it is allowable to define the stele as a group of tissues characterised by the predominance of conducting elements and contained within an endodermis. Used in this sense the word stele also coordinates the vascular anatomy of the Dicotyledon with that of the fern-rhizome, whereas the term vascular bundle, used in these instances, may confuse the beginner.
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