| a ; 
Vol. XLIII No. 3 
| March 1907 
Editors: JOHN M. COULTER and CHARLES R. BARNES 
: 
CONTENTS | 
. Rubiaceae: Anatomical Studies of North American Repre- 
he : sentatives of Cephalanthus, Oldenlandia, Houstonia, | 
Mitchella, Diodia, and Galium Theo. Holm re 
: Morphology of the Trunk and Development of the Micro- ene gi - 
es a _ sporangium of Cycads — Frances Grace Smith 
