 Near the cave stood a sanctuary of Rumina, goddess of breastfeeding; and the wild fig-tree ("Ficus Ruminalis") to which Romulus and Remus were brought by the divine intervention of the river-god Tiberinus; some Roman sources name the wild fig tree "caprificus", literally "goat fig".Like the cultivated fig, its fruit is pendulous, and the tree exudes a milky sap if cut, which makes it a good candidate for a cult of breastfeeding.The Lupercalia had its own priesthood, the "Luperci" ("brothers of the wolf"), whose institution and rites were attributed either to the Arcadian culture-hero Evander, or to Romulus and Remus, erstwhile shepherds who had each established a group of followers.