Keys as per Flora of Peninsular India
Gomphandra tetrandra (Wall.) Sleumer (China (Guangdong, Guangxi, Guizhou, Hainan, Yunnan), Cambodia, India (Assam, Meghalaya, Arunachal Pradesh, Maharashtra, Karnataka, Kerala, Tamil Nadu), Laos, Myanmar [Burma], Sri Lanka, Thailand, Vietnam, Myanmar [Burma] (Chin) as per Catalogue of Life)
Flora of Peninsular India with keys at species links, if any:
Some species found in India with description & keys from Flora of China [Distribution other than China]:
Gomphandra tetrandra (Wallich) Sleumer [Cambodia, India, Laos, Myanmar, Sri Lanka, Thailand, Vietnam].