Vlll LIST OF AUTHORS. 



HOLZINGER, J. M. Some Musci of the International Boundary. 36 

 HUMPHREY, H. B. Observations on Gigartina exasperata 



Harv 60 1 



LANGE, D. Revegetation of Trestle island . . . .621 

 LYON, H. L. Observations on the .embryogeny of Nelumbo . 643 

 MACDOUGAL, D. T. Seed dissemination and distribution of 

 MACMILLAN, CONWAY. Observations on Pterygophora . . 723 



Razoumofskya robztsta (Engelm.) Kuntze . . .169 



MOYER, L. R. Extension of plant ranges in the upper Minne- 

 sota valley . . . . . . . .191 



OLSON, MARY E. Observations on Gigartina . . . 154 



POUND, R., and CLEMENTS, F. E. A method of determining 



the abundance of secondary species . . . . 19 



RAMALEY, FRANCIS. Seedlings of certain woody plants . . 69 

 RAMALEY, FRANCIS. Comparative anatomy of hypocotyl and 



epicotyl in woody plants ....... 87 



RAMALEY, FRANCIS. The seed and seedling of the western 



larkspur (Delphinium occidentale) Wats. . . . 417 



SANDSTEN, EMIL P. The influence of gases and vapors on the 



growth of plants ........ 53 



SAUNDERS, DE ALTON. A new species of Alaria . . .561 

 SCOFIELD, C. S. Some preliminary observations on Dictyo- 



phora ravenelii Burt. . . . . . . 5 2 5 



TILDEN, JOSEPHINE E. List of fresh-water algae collected in 



Minnesota during 1896 and 1897 2 5 



WHEELER, W. A. A contribution to the knowledge of the flora 



of southeastern Minnesota ....... 353 



WHEELER, W. A. A contribution to the knowledge of the flora 



of the Red river valley in Minnesota ..... 569 

 WHEELER, W. A. Notes on some plants of Isle Royale . .619 

 YKNDO, K. Coralline verae of Port Renfrew . . . .71 



