Published in Acta Botánica Mexicana, in 1990, in volume 9, pages 1-11

Published in Acta Botánica Mexicana, in 1990, in volume 9, pages 13-30

Published in Acta Botánica Mexicana, in 1990, in volume 9, pages 37-38

Published in Acta Botánica Mexicana, in 1990, in volume 10, pages 1-2

Published in Acta Botánica Mexicana, in 1990, in volume 10, pages 3-21

Published in Acta Botánica Mexicana, in 1990, in volume 10, pages 23-30

Published in Acta Botánica Mexicana, in 1990, in volume 10, pages 45-49

Published in Acta Botánica Mexicana, in 1990, in volume 11, pages 11-18

Published in Acta Botánica Mexicana, in 1990, in volume 11, pages 19-22

Published in Acta Botánica Mexicana, in 1990, in volume 12, pages 1-7

Published in Acta Botánica Mexicana, in 1990, in volume 12, pages 9-12

Published in Acta Botánica Mexicana, in 1990, in volume 12, pages 13-19

Published in Acta Botánica Mexicana, in 1990, in volume 12, pages 21-24

Published in Acta Botánica Mexicana, in 1990, in volume 12, pages 25-30