I. 



EMBRYO-SAC DEVELOPMENT AND EMBRYOLOGY 



OF SYMPLOCARPUS FOETIDUS. :^^^t^^ 



BOTANIC/^ 



C. Otto Rosendahl. OAHiiiiA<, 



Minneapolis, June 10, 1909 



The present number of the "Minnesota Botanical Studies" is the 

 first one to be issued since 1904. On account of the time that has 

 intervened, this number is issued as part 1 of volume IV. The three 

 preceding parts will constitute volume III, for which index and title 

 page will be furnished at an early date. Owing to the necessity for 

 Hmiting the edition, copies of the "Minnesota Botanical Studies" will 

 hereafter be distributed free only to institutions, departments of 

 botany and working botanists. 



FREDERIC E. CLEMENTS, 



State Botanist. 



V loiei ana naiuennam s iron x^ium naemaroxyiin g-ave ine oesi 

 staining results. 



I wish to express my obligations to Dr. Harold L. Lyon and Mr. 

 W. H. Lippold, both lately connected with the Department of Bot- 

 any of the University of Minnesota, for suggestions and assistance 

 in the beginning of this work. I am also under obligation to Miss 

 Alice Misz for help in the tedious work of preparing the drawings 

 for the accompanying plates. 





1 A Preliminary Note on the Embryogeny of Symplocarpus foetidus. C. Otto 

 Rosendahl. Science. Vol. 23. April 13, 1906. p. 590. 



- Morphology of Spathyema foetida. James Ellis Gow. Botanical Gazette. Vol. 

 43. 2, p. 131. 1907. 



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