Contents. 



Page 



Preface . . . . . 1 



General Phytogeographic Relations of the Regions Traversed. 9 



The Abakan Region and Adjacent Steppe Areas. 9 



The Vegetation of the Islets and River-Banks. 14 



The Steppe Vegetation . . . . 23 



The Siberian Taiga Territory and the Urjankai Country 29 



The Transition Zone between the Steppes and the Primeval Forest 29 



The Sayansk Mountains and the Urjankai Country 35 



Natural Conditions 35 



Summary of the Floral Conditions in the Sayansk Mountains and the Urjankai 



Country . . .... . 43 



The Subalpine Taiga or Forest Territory . 44 



The Alpine Region 73 



The Wooded Steppe Region . . . . 76 



The Lower Steppe Area about the Ulu-kem . . . 94 



Enumeration of Vascular Plants Observed in the Regions Traversed 102 



Pteridophyta , . . 102 



Gymnospermae . .... .... . 110 



Angiospermae . 113 



Index of Genera and Families, Mentioned in the Systematical Part of the Book... 444 

 List of Botanical Literature Concerning the Government of Yeniseisk and the Urjankai 



Country (the Southern Yenisei Valley). . . 448 



Corrections and Additions. . . 456 



Explanation of Plates . . .... . .... 457 



Map of Northern Eurasia, Showing the Travelling Route of the Expedition. 

 Draught of the Urjankai Country (After Rodewitsch). 

 Phytogeographical Map of the Southern Yenisei Valley. 

 Plates. 



