At first sight, RESEDACEAE (the plant family to which the mignonette belongs) is not a palindrome. But it is--in disguise! When its ten letters are split into two equal groups of five letters each, and the letter assigned the values A=1, B=2, ... RESED- totals 51 whilst -ACEAE totals 15.
"Numerical Palindromes: Part 1,"
Word Ways: Vol. 29
, Article 11.
Available at: http://digitalcommons.butler.edu/wordways/vol29/iss4/11