Published in Annals of the Missouri Botanical Garden, in 1927, in volume 14, pages 1-46

Published in Annals of the Missouri Botanical Garden, in 1927, in volume 14, pages 47-86

Published in Annals of the Missouri Botanical Garden, in 1927, in volume 14, pages 87-211

Published in Annals of the Missouri Botanical Garden, in 1927, in volume 14, pages 211-358

Published in Annals of the Missouri Botanical Garden, in 1927, in volume 14, pages 359-424

Published in Annals of the Missouri Botanical Garden, in 1927, in volume 14, pages 425-432