Published in Gayana Botanica, in 1984, in volume 41, pages 61-84

Published in Gayana Botanica, in 1984, in volume 41, pages 85-118

Published in Gayana Botanica, in 1984, in volume 41, pages 119-126

Published in Gayana Botanica, in 1984, in volume 41, pages 127-135

Published in Gayana Botanica, in 1984, in volume 41, pages 201-224

Published in Gayana Botanica, in 1984, in volume 41, issue 2, pages 53-60