

CONTENTS. 





Evans, Alexander William. Hepaticae of Puerto Rico, VI. Chei- 

 lolejeunea, Rectolejeunea, Cystolejeunea, and Pycnolejeunea (with 



plates 



3) 



Arthur, Joseph Charles. New species of Uredineae, IV 

 Underwood, Lucien Marcus. The genus Stenochlaena (with ten 



i 



27 



figures) 



35 



Small, John Kunkel. Studies in North American Polygonaceae, II 51 

 Selby, Augustine Dawson. Studies in etiolation (with plates 4 and 5 



and four figures) ---------67 



Kraemer, Henry. Studies on color in plants - - - - 77 



Randolph, Harriet. The influence of moisture upon the formation 



of roots by cuttings of ivy (with five figures) - - - 93 



Underwood, Lucien Marcus, and Lloyd, Francis Ernest. The 



species of Lycopodium of the American tropics 



- 101 



Evans, Alexander William. The Hepaticae of Bermuda (with plate 



6) 



- 129 



Rydberg, Per Axel. Studies on the Rocky Mountain flora, XVI - 137 

 Berry, Edward Wilber. Contributions to the Mesozoic flora of the 



Atlantic costal plain, I (with plates 7-9) 



- 163 



Gleason, Henry Allan. The genus Vernonia in the Bahamas (with 



two figures) 



183 



Underwood, Lucien Marcus. American ferns, VI. Species added 



to the flora of the United States from 1900 to 1905 

 Peck, Charles Horton. New species of fungi 



- 189 



- 213 



Harris, James Arthur. The anomalous anther-structure of Dicorynia, 



Duparquetia, and Strumpfia (with three figures) 



- 223 



Harper, Roland McMillan. Some new or otherwise noteworthy 



plants from the coastal plain of Georgia (with two figures) 



- 229 



Stockard, Charles Rupert. Cytological changes accompanying 

 secretion in the nectar-glands of Vicia Faba (with plates 10 and 



") 



247 



Cardiff, Ira Detrich. A study of synapsis and reduction (with 



plates 12-15) 



271 



Cockerell, Theodore Dru Alison. Fossil plants from Florissant, 



Colorado (with six figures) 



307 



House, Homer Doliver. Studies in the North American Convolvu- 

 laceae. I-- --------- 



313 



111 



