Winston K. Pendleton, 2121 Funny Stories and How to Tell Them (Bethany)
"What kind of flower is that in your buttonhole?" a fellow asked his friend.
"Why, that's a chrysanthemum," answered the friend.
"It looks like a rose to me."
"No, you're wrong. It's a chrysanthemum," insisted the friend.
"Spell it," the fellow said.
"K-r-i-s-, no it's K-h-r-y-, no it must be C-r-i-s- .By golly, you're right. It is a rose."