First critical edition of the first and longest book of the important Byzantine anthology, Florilegium Coislinianum. The Florilegium Coislinianum is a Byzantine anthology dating to the ninth or tenth century. It deals with subjects ranging from the creation of angels to sin and virtues. Although it is an important document, it has only recently received due attention from the scholarly community. The present edition is the editio princeps of the first book of the Florilegium