Published in Bulletin of the Natural History Museum. Botany series., in 1998, in volume 28, issue 1, pages 1-16

Published in Bulletin of the Natural History Museum. Botany series., in 1998, in volume 28, issue 1, pages 17-40

Published in Bulletin of the Natural History Museum. Botany series., in 1998, in volume 28, issue 1, pages 41-66

Published in Bulletin of the Natural History Museum. Botany series., in 1998, in volume 28, issue 2, pages 67-113

Published in Bulletin of the Natural History Museum. Botany series., in 1998, in volume 28, issue 2, pages 115-150