Accepted By:
-
Alejandro, G. D. & S. Liede-Schumann. 2003. The Philippine Rubiaceae Genera: Updated Synopsis in INTKEY Databases of the DELTA System. Blumea 48: 261-277.
-
Seah, W.W. & K. M. Wong. 2018. Flora of Singapore precursors, 7. A new diagnosed species of Neonauclea (Rubiaceae: Naucleeae) now extinct in Singapore and notes on Neonauclea excelsa and N. calycina. Gard. Bull. Singapore 70(2): 289–294.
|