TABLE OF CONTENTS 



* I ^"^^No. I. Symbiosis and Saprophytism, by Dr. D. T. MacDougal. 

 iS'^'^No. 2. New Species from the western United States, by Dr. Per Axel 

 Rydberg. 

 /^'l ^ No. 3. The dichotomous Panicums : some new Species, by Geo. V. Nash. 

 l'?'^^ No. 4. Delphiniuvi Carolinianum and related Species, by Dr. Per Axel 



Rydberg. 

 f[(>0 No. 5. Studies on the Rocky Mountain Flora— I. by Dr. Per Axel 



Rydberg. 

 {^OO No. 6. Notes and Descriptions of North American Plants 1 and II, by 



Dr. J. K. Small. 

 C^^DNo. 7. Vegetative Reproduction and Multiplication in Ery t hroniuin, hy 



Frederick H. Blodgett. 

 |9 J No. 8. Two new Species of Grimmia from Montana, by R. S. Williams. 

 |9(;, uNo. 9. Studies on the Rocky Mountain Flora — II, by Dr. Per Axel 

 Rydberg. 

 \°(0(:jNo. 10. Studies on the Rocky Mountain Flora— III, by Dr. Per Axel 



Rydberg. 

 \^q\ No. II. Life history oi Schizaa piisilla, by Elizabeth G. Britton and Alex- 

 andrina Taylor. ^ 



■ q^l No. 12. Studies on the Rocky Mountain Flora— IV, by Dr. Per Axel 



Rydberg. 

 \'^0\ No. 13. Further Studies on the Potentilleae, by Dr. Per Axel Rydberg. 

 icj^, I No. 14. Studies on the Rocky Mountain Flora— V, by Dr. Per Axel 



Rydberg. 

 \'\6\ No. 15. Studies on the Rocky Mountain Flora — VI, by Dr. Per Axel 

 ^i Rydberg. 



\^0\ ^ No. 16. Vanishing Wild Flowers, by Elizabeth G. Britton. 

 I^oli^-- No. 17. The Tylostomaceae of North America, by V. S. White. 

 |C\Ol "^ No. 18. Shrubs and Trees of the Southern States, by Dr. J. K. Small. 

 l^Ol'^ No. 19. The American Species of Lvnnorchis and Piperia, North of 

 ■^ Mexico, by Dr. Per Axel Rydberg. 



1 '^ 7-No. 20. The Morphology and Physiology of the Seedlings of Arisaema 



ttiphyllum and A. Dracontiuni, by R. J. Rennert. 

 I '^O LNo. 21. Two new Western Mosses, by R. S. Williams. 

 iGj2.,No. 22. Studies on the Rocky Mountain Flora — VII, by Dr. Per Axel 



Rydberg. 

 /7o3^No. 23. Studies on the Rocky Mountain Flora — VIII, by Dr. Per Axel 



Rydberg. 

 / ^o/UNo. 24. The Nidulariaceae of North America, by V. S. White. 

 / ^t^A-^^- -5- Notes on American Hepaticae, by Marshall A. Howe. 



