Published in Acta Botánica Mexicana, in 1999, in volume 46, pages 1-17

Published in Acta Botánica Mexicana, in 1999, in volume 46, pages 19-27

Published in Acta Botánica Mexicana, in 1999, in volume 46, pages 29-55

Published in Acta Botánica Mexicana, in 1999, in volume 46, pages 57-72

Published in Acta Botánica Mexicana, in 1999, in volume 46, pages 73-76

Published in Acta Botánica Mexicana, in 1999, in volume 46, pages 77-81

Published in Acta Botánica Mexicana, in 1999, in volume 47, pages 1-7

Published in Acta Botánica Mexicana, in 1999, in volume 47, pages 31-53

Published in Acta Botánica Mexicana, in 1999, in volume 48, pages 1-10

Published in Acta Botánica Mexicana, in 1999, in volume 48, pages 11-19

Published in Acta Botánica Mexicana, in 1999, in volume 48, pages 21-26

Published in Acta Botánica Mexicana, in 1999, in volume 48, pages 27-50

Published in Acta Botánica Mexicana, in 1999, in volume 49, pages 1-14

Published in Acta Botánica Mexicana, in 1999, in volume 49, pages 15-17

Published in Acta Botánica Mexicana, in 1999, in volume 49, pages 19-22

Published in Acta Botánica Mexicana, in 1999, in volume 49, pages 23-34

Published in Acta Botánica Mexicana, in 1999, in volume 49, pages 35-46

Published in Acta Botánica Mexicana, in 1999, in volume 49, pages 47-61