Comparative images of this family except Polygala (which can be seen on clicking at this link) are given below:
Salomonia cantoniensis Lour. (India (Uttar Pradesh, West Bengal, Skkim, Arunachal Pradesh, Assam, Nagaland, Manipur, Mizoram, Tirpura, Meghalaya, Madhya Pradesh), Nepal, Bangladesh, Vietnam, Bhutan, Bangladesh, Myanmar [Burma] (Mandalay, Yangon), Thailand, Sumatra (incl. Nias, Bangka Isl.), peninsular Malaysia, Langkawi, Java (incl. Madura Isl.), Lesser Sunda Isl. (Sumbawa, Timor), Borneo (incl. Natuna Isl.), Sulawesi, Philippines (Luzon, Panay, Mindanao), New Guinea (incl. Misool Isl.), Cambodia, Laos, Micronesia (Yap), Palau Isl. (Babeldaob, Koror), Nicobars (North Nicobars), China (?Fujian, ?Guangdong?, Guangxi, ?Guizhou, S-Yunnan, ?Zhejiang), Singapore (I) as per Catalogue of Life)
Securidaca inappendiculata Hassk. (China (Guangdong, Guangxi, Hainan, Yunnan), India (West Bengal, Assam, Tripura, Meghalaya, Orissa), Nepal, Bhutan, Bangladesh, Vietnam, Java, Borneo, peninsular Malaysia (scattered), Thailand, Myanmar [Burma] (Taninthayi, Yangon), Laos as per Catalogue of Life)
Xanthophyllum flavescens Roxb. (India (Assam, Meghalaya, Andhra Pradesh, Karnataka, Tamil Nadu, Kerala), Sri Lanka, Bangladesh, Sumatra, Borneo, Philippines (Luzon, Mindoro, Masbate, Guimaras, Negros, Mindanao), Palawan, Thailand, Myanmar [Burma] (Mon, Sagaing, Yangon, Kayin, Bago), peninsular Malaysia (Kelantan, Perak), Laos, Vietnam as per Catalogue of Life)
Species, genera & family pages of Polygalaceae are now with comparative images. On clicking the link of species, one can check the complete details.
May I request you to pl. go through & point out mistakes, if any. I hope this will aid in identifications in future. If anybody can send images of other species of this family (for incorporation in the website), if any, or can identify unidentified/ wrongly identified images, it will be really nice.