Published in Gardens' Bulletin Singapore, in 1963, in volume 20, issue 1, pages 1-103

Published in Gardens' Bulletin Singapore, in 1963, in volume 20, issue 1, pages 105-122

Published in Gardens' Bulletin Singapore, in 1963, in volume 20, issue 1, pages 123-126

Published in Gardens' Bulletin Singapore, in 1963, in volume 20, issue 1, pages 127-130

Published in Gardens' Bulletin Singapore, in 1963, in volume 20, issue 2, pages 131-228

Published in Gardens' Bulletin Singapore, in 1963, in volume 20, issue 3, pages 229-284

Published in Gardens' Bulletin Singapore, in 1963, in volume 20, issue 3, pages 285-288