Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 1-3

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 5-48

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 49-50

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 51-56

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 57-60

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 61-66

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 67-72

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 73-76

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 81-83

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 84-113

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 114-126

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 127-131

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 132-138

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 139-216

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 217-221

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 222-228

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 229-237

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 238-250

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 251-252

Published in Gardens' Bulletin, Singapore, in 1978, in volume 31, pages 253-254