Published in Gardens' Bulletin, Singapore, in 1985, in volume 38, issue 1, pages 1-42

Published in Gardens' Bulletin, Singapore, in 1985, in volume 38, issue 1, pages 43-54

Published in The Gardens' bulletin, Singapore, in 1985, in volume 38, issue 1, pages 55-144

Published in Gardens' Bulletin, Singapore, in 1985, in volume 38, issue 2, pages 145-148

Published in Gardens' Bulletin, Singapore, in 1985, in volume 38, issue 2, pages 149-174

Published in Gardens' Bulletin, Singapore, in 1985, in volume 38, issue 2, pages 175-184

Published in Gardens' Bulletin, Singapore, in 1985, in volume 38, issue 2, pages 185-225

Published in Gardens' Bulletin, Singapore, in 1985, in volume 38, issue 2, pages 227-233