CONTENTS OF UOL 2. NO. 2. 



PAGE 



1. Observations on Aphyllon uniflorum. By Amelia Smith, 



B. S. ( With plates xiii, xiv, xv) Ill 



2. The Comparative Structure of the Flowers of Polygala 



polygama, and P. pauciflora, with Observations on 

 Cleistogamy, By Professor Charles H. Shaw, Ph. D. 

 (With plates xvi-xvii) . 122 



3. Observations on Growth and Cell Division in the Root of 



Vicia Faba. By Blanche Gardner, B. S. (With plate xviii) 150 



4. Current Problems in Plant Cytology. By Professor J. M. 



]Macfarlane 183 



5. Fasciation in the Sweet Potato. By Henry S. Conard, M. A., 



Harrison Fellow. (With plate xix) 205 



6. The Beach Plum Botanically and Economically Considered. 



By Professor J. M. Macfarlane. (With plates xx, xxij . . . . 2l6 



7. A Study of the Fertile Hybrids Produced by Crossing 



Teosinte and Maize. By John W. Harshkf:rger, Ph. D. 



(With plate xxii) .... 231 



«^^ t^** ^^ fii^ -. 



List of University Publications at the close 

 of this number 



Orders for single numbers or complete sets of the Publications slnould 

 be sent to Ginn and Co., Agents, Tremont Place, Boston, Mass. 



