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Botanical 



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Vol. XXXV, No. 4 



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Issued April 20, 1903 



CONTENTS 



OOGENESIS IN SAPROLEGNIA. Contributions from the Hull Botanical Labora- 

 tory, XLVI (with plates ix and x). Bradley Moore Davis . - . - 



THE BEHAVIOR OF THE CHROMOSOMES IN THE SPORE MOTHER-CELLS OF 



HIGHER PLANTS AND THE HOMOLOGY OF THE POLLEN AND EMBRYO- 

 SAC MOTHER-CELLS (with plates xi-xiv). David M, Mottier - 



BRIEFER ARTICLES. 



Notes on North American Grasses. III. New Species of Willkommia (with 

 TWO figures), .a, S, Hitchcock - ■ . - . . - 



The Morphology of Spore-Producing Members. F, O. Bower 

 CURRENT' LITER A TURE, 



BOOK REVIEWS .--....--- 



Influence of Light and Darkness. The Heaths of Northern Germany. Vege- 

 tation Pictures. 



minor notices - - - 



NOTES FOR STUDENTS - - - - - ' - 



MEWS 



233 



250 



283 

 285 



292 



295 

 297 



303 



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