Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 1, pages 1-65

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 1, pages 67-95

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 1, pages 97-101

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 2, pages 103-147

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 2, pages 149-151

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 2, pages 153-167

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 2, pages 169-175

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 2, pages 177-191

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 2, pages 193-202

Published in Gardens' Bulletin, Singapore, in 1986, in volume 39, issue 2, pages 203-214