Checklist of Plants of India

Psychotria nigra (Gaertn.) Alston in Trimen, Handb. Fl. Ceylon 6: 152. 1931.

Grumilea nigra Gaertn, Fruct. Sem. Pl: 138, t. 28, f. 2.. 1788.

Grumilea nudiflora Thwaites, Enum.Pl. Zeyl. 147. 1864.

var. nigra
Psychotria thwaitesii   Hook.f., Fl. Brit. India 3: 162. 1880.
Karnataka, Kerala, Maharashtra, Tamil Nadu.

var. peninsularis (Hook.f.) Deb & M. Gangop., J. Econ. Taxon. Bot. Addl. Ser 7: 51. 1989.
Psychotria thwaitesii  Hook.f. var. peninsularis  Hook.f., Fl. Brit. India 3: 162. 1880.
Karnataka, Kerala, Maharashtra, Tamil Nadu.