Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 29-32

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 33-58

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 59-108

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 109-164

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 165-174

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 175-183

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 185-240

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 241-252

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 253-274

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 275-285

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 287-305

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 307-313

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 315-376

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 377-401

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 403-458

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 459-506

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 507-572

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 573-626

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 627-658

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 659-666

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 667-730

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 731-770

Published in Annals of the Missouri Botanical Garden, in 1915, in volume 2, pages 771-836