E. V. Wulff 



— 2— 



Historical Plant Geography 



nate the branch of science we are discussing. Later Alphonse de 

 Candolle called it "epiontology". Engler called it " Entwicklungs- 

 geschichtliche Pflanzengeographie ", seeing in the history of the de- 

 velopment of floras the chief task of this branch of botanical geography. 

 DiELS and Schroter gave it the name "genetic plant geography", 

 returning in essence to de Candolle's term. (For a schematic presen- 

 tation of the different views on this question see the table below). 



Terms Employed by Various Authors to Designate the Three 

 Main Branches of Plant Geography: — 



The term "geobotany" was first used in 1866 by Grisebach to 

 designate all branches of botanical geography, and it was used in the 

 same sense by Drude (1890) and later by Rijbel (1922-1927). 



But in the same year as Grisebach, either independently or per- 

 haps under the influence of the "Vegetation der Erde" by this author, 

 there was published in Russia a memoir by Ruprecht entitled "Geo- 



