Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 1-102

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 103-226

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 227-230

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 231-240

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 241-338

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 347-348

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 349-366

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 367-432

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 433-608

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 609-611

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 613-623

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 625-708

Published in Annals of the Missouri Botanical Garden, in 1934, in volume 21, pages 709-712