An important generic character consists in the gemination of the cell at each bifurcation.
Some roots are reduplicated wholly or in part with a frequentative meaning, and there are traces of gemination of radicals.
No wonder if St. John proposed them in this gemination to our second thoughts.
gemination gem·i·na·tion (jěm'ə-nā'shən)
Embryologic partial division of a primordium, as of a single tooth germ forming two teeth.