Honoring Dr. Donald J. Pinkava (1933–2017) Director of the Vascular Plant Herbarium, School of Life Sciences, Arizona State University 1964–2000

Résumé

We dedicate this volume to our friend, mentor, and colleague who gave us so generously of his time, encyclopedic knowledge, wisdom, good humor, and patience. Dr. Pinkava mentored 35 students as chair or co-chair, including seven Ph.D. students, many of whom have launched their own academic careers (see list of graduate students at the end). He published generously with his students on Cactaceae, the Flora of Arizona and documenting new chromosome counts for both (see bibliography below).