Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2007)

Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2007)

Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2007)

Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 2009)