Published in Annals of the Missouri Botanical Garden, in 1964, in volume 51, pages 1-35
Created: 2010-01-08, modified: 2016-12-29
doi:10.2307/2394900
Published in Annals of the Missouri Botanical Garden, in 1964, in volume 51, pages 37-68
Created: 2010-01-08, modified: 2016-12-29
doi:10.2307/2394901