Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 1-5

Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 6-88

Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 97-98

Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 99-242

Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 243-244

Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 245-257

Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 258-260

Published in Annals of the Missouri Botanical Garden, in 1971, in volume 58, pages 261