LILJ1< 



NEW 



TABLE OF CONTENTS 



No. 



No. 

 No. 



No. loi. Phycological Studies — III. Further Notes on Halimcda 

 and Avrainvillea, by Marshall Avery Howe. 

 Mosses from Tropical America, by Robert Statham Williams. 

 Alabastra Philippinensia, by Charles Budd Robinson. 

 Studies in the North American Convolvulaceae — IV. The 



Cienus Cxogonium, by Homer Doliver House. 

 The Taxonomic Aspect of the Species Question, by Na- 

 thaniel Lord Britton. 

 The Genus Ernodea : A Study of Species and Races, by 



Nathaniel Lord Britton. 

 Further Studies of Solution Tension and Toxicity in Lip- 



olysis, by Raymond H. Pond. 

 Studies of West Indian Plants — I, by Nathaniel Lord 



Britton. 

 A Study of the Digestive Power of Sarracenia purpurea, by 



Winifred J. Robinson. 

 Additional Philippine Polyporaceae, by William .Alphonso 



Murrill. 

 Boleti from Western North Carolina, by William Al[)honso 



Murrill. 

 Notes on Philotria Raf., by Per Axel Rydberg. 

 Some Notes on the Chemical Compositioa and Toxicity of 

 Ibervillea Sonorae, by Julia T. Emerson and William H. 



Welker. 

 The Boleti of the Frost Herbarium, by William A. Murrill. 

 Some North Dakota Hypocreales, by Fred J. Seaver. 

 Notes on Rosaceae — I, by Per Axel Rydberg. 

 Studies in North American Peronosporales — IV. Host 



Indexj by Guy West Wilson. 

 i8. Studies of West Indian Plants — II, by Nathaniel Lord 



Britton. 



19. North Dakota Slime-Moulds, by Fred J. Seaver. 



20. Phycological Studies — IV. The Genus Neomeris and 

 Notes on other Siphonales, by Marshall Avery Howe. 



