1894. ] Papers Read Before Section G, A. A. A. S. 373 
presented a brief discussion of the primitive flower of the 
monocotyledons; modifications of the primitive flower by in- 
creased complexity of structure; the origin of sedges and 
grasses; development of irises and orchids; the primitive 
flower of the dicotyledons; modifications by increased com- 
plexity; modifications by simplification; development of the 
Bicarpellatee and of the Infere. It was accompanied by the 
following chart of suggested changes in the arrangement of 
groups in accordance with genetic lines. 
Micromerz 
Bicarpellate 
Inferze 
Heteromerse 
ay Calyciflore 
Soothe ERWIN F.: The watermelon disease of the South. 
a ety isa disease of the vine of hitherto unknown origin, 
ais prevalent in the melon districts of the southeastern 
ed States and so destructive that growers in Georgia be- 
