Chrysanthemums are an iconic autumn flower. You can see potted mums for sale everywhere including the supermarkets where ranks of mums in shades of lemon, tangerine and plum cluster around the entrances. A friend reminded me of a quote from Maggie Smith  in the 1969 movie, The Prime of Miss Jean Brodie, which I never saw. A student had given Miss Brodie a bouquet(?) of chrysanthemums and her response was, “Chrysanthemums. Such a serviceable flower.” Miss Brodie did…