Annals 



of the 



Missouri Botanical 



Garden 



Volume VI 



1919 



With Five Plates and Thirty Figures 



Published quarterly by the Board of Trustees of the 

 Missouri Botanical Garden, St. Louis, Mo. 



Editorial Office, Missouri Botanical Garden, St. Louis, Missouri. 



Entered as second-class matter at the Post Office at Concord, New Hampshire, 



under the Act of March 3, 1879. 



542296 



