being that painted in the Sistine Chapel by Michelangelo. The typical form of the image The most typical form which the Jesse Tree takes is to show the figure of Jesse, often larger than all the rest, reclining or sleeping (perhaps by analogy to Adam when his rib was taken) at the foot of the pictorial space. From his side or his navel springs the trunk of a tree or vine which ascends, branching to either side. On the branches, usually surrounded by formally scrolling tendrils of foliage, are figures representing the ancestors of Christ. The trunk generally ascends vertically to Mary and then Christ at the top. The number of figures depicted varies greatly, depending on the amount of room available for the design. As a maximum, if the longer ancestry from Luke is used, there are 43 generations between Jesse and Jesus. The identity of the figures also varies, and may not be specified, but Solomon and David are usually included, and often all shown wear crowns. Most Jesse Trees include Mary immediately beneath the figure of Jesus (or, in the Gothic period, show a Virgin and Child), emphasising that she was the means by which the shoot of Jesse was born. See for example, Sermon 24 of St Leo the Great: "In which rod, no doubt the blessed Virgin Mary is predicted, who sprung from the stock of Jesse and David and fecundated by the Holy Ghost, brought forth a new flower of human flesh, becoming a virgin-mother". Saint Joseph is rarely shown, although unlike Mary he is a link in the Gospel genealogies. It was believed in the Middle Ages that the House of David could only marry within itself, and that she was independently descended from Jesse. Sometimes Jesus and other figures are shown in the cups of flowers, as the fruit or blossom of the Tree. The Jesse Tree was the only prophecy in the Old Testament to be so literally and frequently illustrated, and so came also to stand for the Prophets, and their foretelling of Christ, in general. Both the St-Denis and Chartres windows include columns of prophets, as do many depictions. Often they carry banderoles with a quotation from their writings, and they may point to Christ, as the foretold Messiah. The inclusion of kings and prophets was also an assertion of the inclusion and relevance in the biblical canon of