Sanio's law
English
Etymology
Published by Prussian botanist Karl Gustav Sanio (1832–1891).
Proper noun
Sanio's law (plural Sanio's laws)
- (botany) Any of a series of observations on a pattern in the size of xylem tracheids, increasing in size from the top of a tree to a certain height, after which they decrease again to the base of the tree. These laws generally hold true for coniferous woods.