This is one of those cases where there are two hostas with the same name. Neither are currently registered with The American Hosta Society. The first one to be registered would become the "official" hosta of that name and the others would have to be renamed.

This non-registered cultivar is a sport of H. ventricosa from Bill Janssen of Collector's Nursery in Washington. It forms a large size (22 inches high by 50 inches wide) mound with shiny, dark green, heart shaped foliage with a lighter, chartreuse colored medial (center) variegation. The medium purple, bell-shaped flowers with purple anthers are borne in July. The flower scapes may have faint red on them and bear a single bract about half way up.

Hosta Helper will call this plant 'Command Performance' (Janssen)

According to The Hostapedia by Mark Zilis (2009), "This name was also used for a white-margined, 'Fortunei'-type in the 1992 AHS leaf show."

Hosta Helper will call this plant 'Command Performance' (Hostapedia)