Detail of an Attic black-figure crater, dating to 525-500 B.C., now
in the Louvre Museum, Paris. The scene shows, in the centre, Dionysus,
holding in his hand a wine cup and in the other hand a long vine branch,
surrounded by Maenads and Sileni. Dionysus’s link with grapes
and wine, makes him a god associated with agriculture and, more generally,
with the fertility of nature. Some of his epithets qualify him, indeed,
as a god of trees (Dendrítes), of the flowers (Ánthios)
and of the fruits (Kárpios). It is possible, furthermore, to
find multiple relationships between Dionysus and earth goddesses: his
own mortal mother, Semele, seems to derive her name from that of an
ancient Thraco-Phrygian goddess of the earth (Chantraine, 1968, p.996).
At Locri, in Magna Graecia, several clay plaques show Dionysus with
Persephone, the goddess of vegetation and the Underworld.
[Source: http://commons.wikimedia.org/wiki/File:Dionysos_thiasos_Louvre_MNE938.jpg]