TABLE OF CONTENTS. 



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, IC. 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 w'estern larkspur 



(^Delphinium occidentale Wats.), Francis 

 Ramaley . . . . . . . • ^^7 



XXIV, A preliminary list of Minnesota Erysiphcee, £. 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, /C. C. Davis . . . 459 



XXVII. A synonvmic conspectus of the native and garden 



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

 XXVIII. Some preliminary observations on Dictyophora 



ravenelii Burt., C. S. Scojield .... 525 



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



Freeman ........ 537 



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

 XXXI. A preliminar}' list of Minnesota Xylariacete, 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 exasperaia 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 



F. W. D. Holway 631 



XXXVIII. Observations on the embryogeny of Nclumbo., 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 veras of Port Renfrew, K. Yendo . • 7^1 



XLI. Observations on Pterygophora^ Conway MacMillan 723 



