Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 99-102

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 138-140

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 103-107

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 93-98

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 79-92

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 125-130

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 137-138

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 1, pages 77-88

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 1, pages 49-75

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 1, pages 1-47

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 131-135

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 109-123

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 2, pages 37-78

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 1, pages 89-103

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 1, pages 105-112

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 1, pages 113-119

Published in Gardens' Bulletin, Singapore, in 1994, in volume 46, issue 1, pages 121-140