2007 314, 8 p., numerous figures, 16 coloured plates, paperbound. Good copy.
viiii, 315 p., 129 figs, paperbound. Thesis. Library stamp.
1989 315 p., 129 figures, paperbound. Leiden Botanical Series, Volume 12. New copy.
2010 123, 5 p., numerous figures, 8 coloured plates, paperbound. Good copy.