What is "polystylus"

Polystylus can mean

• Polystylus (place), an ancient city in the Roman province of Macedonia;
• Phalaenopsis an orchid also called Polystylus Hasselt ex Hassk.

Polystylus is the name of an ancient town and bishopric in the late Roman province of Macedonia Secunda, whose metropolis was Philippi. Its name is given in this form in the Catholic Church's list of titular sees. A 1911 article by Sophrone Pétridès called it Polystylum.