Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 227-250

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 264-279

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 335-353

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 480-483

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 484-490

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 501-503

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 504-509

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 510

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 512-513

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 513

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 517-520

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 521-537

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 538-589

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 590-620

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 621-646

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 647-663

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 664-723

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 724-764

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 765-800

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 801-824

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, pages 825-834

Published in Annals of the Missouri Botanical Garden, in 1975, in volume 62, issue 2, pages 251-263