VI 



TABLE OF CONTENTS. 



417 



XX. A synonymic conspectus of the native and garden 



Aquilegias of North America, K. C. Davis . 331 

 XXI. A synonymic conspectus of the native and garden 



Aconitums of North America, K. C. Davis . 345 

 XXII. A contribution to the knowledge of the flora of 



southeastern Minnesota, W. A. Wheeler . . 353 



XXIII. The seed and seedling of the western larkspur 



{Delphinium occidentale Wats.), Francis 

 Ramaley ........ 



XXIV. A preliminary list of Minnesota Erysipheaa, E. M. 



Freeman ........ 423 



XXV. Native and garden Delphiniums of North America, 



K. C. Davis . . . . . . . 431 



XXVI. Native and cultivated Ranunculi of North America 



and segregated genera, K. C. Davis . . . 459 

 XXVII. A synonymic conspectus of the native and garden 



Thalictrums of North America, K. C. Davis . 509 

 XXVIII. Some preliminary observations on Dictyophora 



ravenelii Burt., C. S. Scofield .... 525 



XXIX. A preliminary list of Minnesota Uredineaa, E. M. 



Freeman ........ 537 



XXX. A new species of Alaria, De Alton Saunders . 561 

 XXXI. A preliminary list of Minnesota Xylariacese, F. K. 



Butters ........ 563 



XXXII. A contribution to the knowledge of the flora of the 



Red river valley in Minnesota, W. A. Wheeler 569 



XXXIII. Observations on Gigartina exasperata Harv., H. 



B. Humphrey . . . . . . .601 



XXXIV. Observations on the algae of the St. Paul city water, 



M. G. Fanning ...... 609 



XXXV. Notes on some plants of Isle Royale, W. A. 



Wheeler . . . . . . . . 619 



XXXVI. Revegetation of Trestle island, D. Lange . .621 

 XXXVII. Violet rusts of North America, J. C. Arthur and 



E. W. D. Hoi-way 631 



XXXVIII. Observations on the embryogeny of Nelumbo, H. 



L. Lyon ........ 643 



XXXIX. Contributions to a knowledge of the lichens of Min- 

 nesota. VI. Lichens of northwestern Minnesota, 

 Bruce Fink . . . . . . -657 



XL. Corallinae verae of Port Renfrew, K. Yendo . . 711 

 XLI. Observations on Pterygophora, Conway MacMillan 723 



