Published in Gayana Botanica, in 1998, in volume 55, pages 1-10

Published in Gayana Botanica, in 1998, in volume 55, pages 11-15

Published in Gayana Botanica, in 1998, in volume 55, pages 17-21

Published in Gayana Botanica, in 1998, in volume 55, pages 23-83

Published in Gayana Botanica, in 1998, in volume 55, pages 85-88

Published in Gayana Botanica, in 1998, in volume 55, pages 89-92

Published in Gayana Botanica, in 1998, in volume 55, pages 93-110

Published in Gayana Botanica, in 1998, in volume 55, pages 111-185

Published in Gayana Botanica, in 1998, in volume 55, pages 187-211