Looks like a Barleria cf. cristata with an unusual flower... (Barleria used to have 5 petals, while this one has only 4)
Lila you are a genius. I have been searching for a 4 petal flower. Duh! Trust me to find an odd flower! I have even taken pics of Barleria cristata before on Santa Cruz.....Solomon Islands.January 2014. I found this video on www which shows the exact same features... Many many thanks. That is one less to worry about. Found this on www...another which appears to have 4 petals. barleria cristata - Google Search: