The flower images mentioned in my post forwarded below, should be of Vicoa cernua (Syn: Pentanema cernuum) only, as per the following paper
As per this paper, Vicoa gokhalei is a synonym of Vicoa cernua. The species which the authors, describing Vicoa gokhale, considered to be Vicoa cernua (the one with virtually invisible ray florets) is now described as a new species Vico sahyadrica.
Tabish