The One With The Blind Dates - S9-E14
Factual error: Monica takes an ovulation test to see if she is still ovulating. The ovulation test only works before you ovulate (usually 24 to 36 hrs), to detect the LH surge that comes before you ovulate. Once you ovulate that surge is gone and the test will not work. (00:08:20)
Answer: The painting doesn't have a name, and if it does it is never mentioned in this episode.