I need an updated key to Bauhinia Plum. ex L.
as per http://powo.science.kew.org/ Bauhinia roxburghiana Voigt and Bauhinia semla Wunderlin are synonyms to Phanera retusa Benth.
But https://www.catalogueoflife.org/ has been following keys with Flora of India and Flora of Maharashtra State representing both species as authenticated names and different species.
Bauhinia roxburghiana Voigt
Bauhinia semla Wunderlin