Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 1-18

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 35-58

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 59-68

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 69-88

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 89-101

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 103-135

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 137-140

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 141-154

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 155-182

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 183-244

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 245-274

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 275-282

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 287-315

Published in Annals of the Missouri Botanical Garden, in 1942, in volume 29, pages 317-379