1
Wydane: 1988
Superior document: Smithsonian contributions to botany Number 72
2
Wydane: 1989
Superior document: Smithsonian contributions to botany Number 69
3
Wydane: 1989
Superior document: Smithsonian contributions to botany Number 68
4
Wydane: 1985
Superior document: Smithsonian contributions to botany 59
5
Wydane: 1987
Superior document: Smithsonian contributions to botany Number 65