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( Oiitents. 



Page 



I'icfare 1 



General Phytogeographic Helalions oi' the Regions Traversed <) 



The Abakan Region and Adjacent Sleppe Areas !) 



The ^'egelalion 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 Ste[)pes and the Primeval Forest 29 



The Sayansk Mountains and the I'rjankai ("ountry 35 



Natural Conditions ?,5 



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 



Elnumeration of Vascular Plants Observed in the Regions Traversed 102 



Pteridophyta 102 



Gymnospermae 110 



Angiosperniae 11:'. 



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 407 



Ma]) of Northern Eurasia, Showing the Travelling Route of the Expedition. 

 Draught of the Urjankai Country (After Rodewitsch). 

 Phytogeographical Map of the Southern ^'enisei Valley. 

 Plates. 



