Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 15-30

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 31-43

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 45-76

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 3-14

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 77-78

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 79

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 87

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 375-387

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 389-395

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 397-428

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 429-496

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 497-498

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 499-501

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 503-504

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 505-531

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 177-178

Published in Annals of the Missouri Botanical Garden, in 1932, in volume 19, pages 179-374