Published in Gardens' bulletin, Singapore, in 1977, in volume 30, pages 101-110

Created: 2015-12-03, modified: 2015-12-03

Published in Gardens' Bulletin, Singapore, in 2011, in volume 63, issue 1, pages 205-212

Created: 2014-06-21, modified: 2014-06-21

Published in Gardens' Bulletin, Singapore, in 2012, in volume 64, issue 2, pages 293-299

Created: 2015-07-28, modified: 2015-07-29

Published in Proceedings of the Linnean Society of New South Wales, in 2018, in volume 140, pages 295-312

Created: 2020-08-09, modified: 2020-08-09