CONTENTS. 



No. I. A Preliminary List of North American Species of Cyperus, 

 with Descriptions of new Forms. By N. L. Britton (1886). 



No. 2. Cerastium arvense L. , and its North American Varieties. 

 By Arthur Rollick and N. L. .Britton (1887). 



No. 3. Plant Notes from Termiscouata County, Canada. By J. I. 

 Northrop (1887). 



No. 4. A List of Plants collected by Miss Mary B, Croft at San 

 Diego, Texas. By N. L. Britton and H. H. Rusby (1887). 



No. 5. New or Noteworthy North American Phanerogams — L By N. 

 L. Britton (1888). 



No. 6. An Enumeration of the Plants collected by Dr. H. H. Rusby 

 in South America, 1 885-1 886. Parts I-XXIIL By N. L. 

 Britton. The account of the general features of the region 

 traverbcd by Dr. Rusby; the algae and fungi determined 

 by Prof. W. G. Farlow, the Lichenes by Dr. J. W. Eck- 

 feldt, the Musci and Pteridophyta by Elizabeth G. Britton, 

 the Hepaticae by Dr. Richard Spruce (i 886-1 896). 



No. 7. The Genus ^/^^r/Vj; of Rafinesque. ByN. L. Britton (1888). 



No. 8. A recent Discovery of Hybrid Oaks on Staten Island. By 

 Arthur Rollick (1888). 



No. 9. A List of Plants Collected by Dr. E. A. Mearns at Fort Verde 

 and in the MogoUon and San Francisco Mountains, Ari- 

 zona, 1884-1888. ByN. L. Britton. 

 The General Floral Characters of the San Francisco and 

 the Mogollon Mountains and the Adjacent Region. By R. 

 R. Rusby (1888). 



No. 10, Contributions to American Bryology — I. By Elizabeth G. 

 Britton (1888). 



No. II. Preliminary Notes on the North American Species of the 

 • Genus Tissa Adans. By N. L Britton (1889). 



No. 12. The Genus Eleocharis in North America. By N. L. Britton 

 (1889). 



No. 13. New or Noteworthy North American Phanerogams — IL By 

 N. L. Britton (1889). 



No. 14. A List of State and Local Floras of the United States and 

 British America. By N. L. Britton (1889). 



No. 15. A Descriptive List of Species of the Genus Heuchera. By 

 Wm. E. Wheelock (1890). 



