99 
son, N. Y.; Miss Margaret Mclkenny, Sharon, Conn.; Mr. 
Paul Schauland, Waterbury, Conn. 
October. C. dentata from Mr. E. W. Eddy, New York City; Mr. 
Floyd W. Callward, State Extension Forester, Connecti- 
cut State College, Storrs, Conn.; Prof. Lewis J. Johnson, 
Hopkinton, Mass. (through Mr. C. A. Weatherby of the 
Gray Herbarium, Harvard University) ; Mr. Arthur Davis, 
Norwalk, Ohio; Mr. Burton N. Gates (through Mr. 
Harold IK. Brigham), Worcester, Mass.; Mr. P. H. Smith, 
Pawling, N. Y.; Mr. Lawrence Goetz, Woodstock, Ulster 
Co., N. Y.; Mrs. Wm. Allen Pusey, Elizabethtown, Ky.; 
Mr. J. F. Smith, Suffield, Conn. ; Mr. C. P. Englund, Holm- 
del, N. J.; Miss Edith Von Elz, Cragsmoor, Orange Cou 
Ne Ye 
C. crenata from Mrs. P. W. Hammond, Syosset, L. I.; Mr. 
H. Vanderbeek, Pomfret, Conn., through Mr. Floyd M. 
Callward. 
November. C. dentata from Mr. Alfred Frueh, Sharon, Conn. 
C. crenata and C. mollissima from Mr. Ralph H. Morton, 
Weymouth, Mass. 
— 
FLOWER STRUCTURE AND THE CLASSIFICATION OF DICOTYLEDONS 
By ALFRED (GUNDERSEN 
The study of the development and comparison of flower 
structures of Dicotyledons has been continued so far as time has 
permitted. Miss Maud H. Purdy completed another color study 
of Ipomoea tricolor. The study of flowers with parietal placenta- 
tion and their suspected relationships is being continued. 
Why these groups? The diagram of Dicotyledons (Fig. 7) 
was published by Engler forty-five years ago, in 1897. It shows 
Rhoeadales (Poppy Group) and Parietales (Rockrose Group) as 
connected. If these groups are placed adjacent, it eliminates a 
significant difference between the Engler and the Bentham- 
Hooker systems. That would place a large group of families 
near the important Ranales or Magnolia group. 
The phylogenetic picture of Angiosperms, with their branches, 
ike, rather than tree-like, said Winkler in 1935. 
—" 
is decidedly shrub- 
