Published in Annals of the Missouri Botanical Garden, in 1922, in volume 9, pages 79-233

Published in Annals of the Missouri Botanical Garden, in 1922, in volume 9, pages 233-324

Published in Annals of the Missouri Botanical Garden, in 1922, in volume 9, pages 325-333

Published in Annals of the Missouri Botanical Garden, in 1922, in volume 9, pages 333-402

Published in Annals of the Missouri Botanical Garden, in 1922, in volume 9, pages 403-435

Published in Annals of the Missouri Botanical Garden, in 1922, in volume 9, pages 1-78