Black Orchids is a Nero Wolfe double mystery by Rex Stout published in 1942 by Farrar & Rinehart, Inc. Stout’s first short story collection, the volume is composed of two novellas that had appeared in abridged form in The American Magazine:
*”Black Orchids” (August 1941, abridged as “Death Wears an Orchid”)
*”Cordially Invited to Meet Death” (April 1942, abridged as “Invitation to Murder”)