Dīs Pater Dīs Pater Dīs Pater (pronounced ) was a Roman god of the underworld. Dis was originally associated with fertile agricultural land and mineral wealth, and since those minerals came from underground, he was later equated with the chthonic deities Pluto (Hades) and Orcus. "Dīs Pater" was commonly shortened to simply Dīs and this name has since become an alternative name for the underworld or a part of the underworld, such as the City of Dis of Dante's "The Divine Comedy", which comprises Lower Hell. It is often thought that Dīs Pater was also a Celtic god. This confusion arises from
Pluto (mythology) The tree was the white poplar (Greek "leukē"), the leaves of which are white on one side and dark on the other, representing the duality of upper and underworld. A wreath of white poplar leaves was fashioned by Heracles to mark his ascent from the underworld, an "aition" for why it was worn by initiates and by champion athletes participating in funeral games. Like other plants associated with Pluto, white poplar was regarded as a contraceptive in antiquity. The relation of this tree to the white cypress of the mysteries is debated. The "Bibliotheca" of Pseudo-Apollodorus uses the name "Plouton"