OPS was the Latin goddess of plenty. Single parts of her province were taken over by various other divinities, among whom was Pomona (pomorum patrona, "she who cares for fruits"). She is represented as a maiden with fruit in her arms and a pruning-knife in her hand.
"I am the ancient apple-queen.
"Ah, where's the river's hidden gold!
Many Roman poets told stories about her, the best known being by Ovid, who says that she was wooed by many orchard-gods, but preferred to remain unmarried. Among her suitors was Vertumnus ("the changer"), the god of the turning year, who had charge of the exchange of trade, the turning of river channel, and chiefly of the change in nature from flower to ripe fruit. True to his character he took many forms to gain Pomona's love. Now he was a ploughman (spring), now a fisherman (summer), now a reaper (autumn).
At last he took the likeness of an old woman (winter), and went to gossip with Pomona. After sounding her mind and finding her averse to marriage, the woman pleaded for Vertumnus's success.
"Is not he the first to have the fruits
Then the crone told her the story of Anaxarete who was so cold to her lover Iphis that he hanged himself, and she at the window watching his funeral train pass by was changed to a marble statue. Advising Pomona to avoid such a fate, Vertumnus donned his proper form, that of a handsome young man, and Pomona, moved by the story and his beauty, yielded and became his wife.
Vertumnus had a statue in the Tuscan Way in Rome, and a temple. His festival, the Vortumnalia, was held on the 23d of August, when the summer began to wane. Garlands and garden produce were offered to him.
Pomona had been assigned one of the fifteen flamina, priests whose duty it was to kindle the fire for special sacrifices. She had a grove near Ostia where a harvest festival was held about November first. Not much is known of the ceremonies, but from the similar August holiday much may be deduced. Then the deities of fire and water were propitiated that their disfavor might not ruin the crops. On Pomona's day doubtless thanks was rendered them for their aid to the harvest. An offering of first-fruits was made in August; in November the winter store of nuts and apples was opened. The horses released from toil contended in races.
From Pomona's festival nuts and apples, from the Druidic Samhain the supernatural element, combined to give later generations the charms and omens from nuts and apples which are made trial of at Hallowe'en.