Published in Annals of the Missouri Botanical Garden, in 1925, in volume 12, pages 1-106

Published in Annals of the Missouri Botanical Garden, in 1925, in volume 12, pages 133-143

Published in Annals of the Missouri Botanical Garden, in 1925, in volume 12, pages 145-212

Published in Annals of the Missouri Botanical Garden, in 1925, in volume 12, pages 213-357

Published in Annals of the Missouri Botanical Garden, in 1925, in volume 12, pages 359-366

Published in Annals of the Missouri Botanical Garden, in 1925, in volume 12, pages 367-380

Published in Annals of the Missouri Botanical Garden, in 1925, in volume 12, pages 381-418