Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 1-94

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 95-188

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 189-224

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 225-297

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 299-359

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 361-434

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 435-453

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 455-466

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 467-514

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 515-718

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 729-768

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 769-773

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 775-794

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 795-822

Published in Annals of the Missouri Botanical Garden, in 1938, in volume 25, pages 823-840