For a week, Lois the corpse flower has promised to show us her smelly stuff. But Friday, the shy titan arum at the Cockrell Butterfly Center at the Houston Museum of Natural Science remained closed. Rotting bananas enlisted to help corpse flower open up. Lois will be the second corpse flower to bloom in Texas. The first was the 61-inch-tall Big Jack at Stephen F. Austin State University’s Mast Arboreum in 2004. Twenty-eight corpse flowers have bloomed in the United States.