California Serpentines: Flora, Vegetation, Geology, Soils, and Management Problems by Arthur R. Kruckeberg (Author) April 1985 Paperback $31.95, £27.00
Plant Diversity of an Andean Cloud Forest: Inventory of the Vascular Flora of Maquipucuna, Ecuador by Grady L. Webster (Author), Robert Rhode (Author) April 2001 Paperback $42.00, £35.00|eBook $42.00, £35.00