Chapter V 



—85— 



Types of Areas 



having continuous areas, despite the fact that these two continents are 

 united. There are very many examples of this type, of which we shall 

 cite but a few: 



Cimicifuga foeiida. Central Europe, southwestern part of European 

 U.S.S.R. — southern Siberia from Novosibirsk Region to the Pacific 

 Ocean, China, Japan, the Himalayas. 



Leontice altaica. Southern part of European U.S.S.R. — eastern 

 part of Semipalatinsk Region, southwestern part of Novosibirsk Re- 

 gion. 



Middendorfia horysthenica. Southern part of European U.S.S.R., 

 Kirghiz steppes (Airtau), Kara-Irtysh Valley — Novosibirsk Region (one 

 habitat) . 



Cymbaria horysthenica. Crimea, Dnepropetrovsk and Nikolayev 



Fig. 12. — North Atlantic and Pacific ranges: i, Vallisneria spiralis (Europenn) and 

 V. americana (American); 2, Liriodendron Tidipifera (American) and L. chinense 

 (Chinese); ^, Symplocarpiis foetidus; 4, Polygonum virginianum. (After Fernald). 



Regions in the Donetz Valley — C. dahurica, Siberia westward as far as 

 the Yenisey, Mongolia to the Chinese border, Manchuria, and C. nion- 

 golica, southwestern Mongolia (perhaps this species should be combined 

 with the preceding). 



Wulfenia carinthiaca, Carinthian Alps, Balkan Peninsula (mountains 

 of Albania and Montenegro), and W. Baldacci, Albania — W. orientalis, 

 Syria, and W. Anther stiana, western Himalayas, Afghanistan. 



7. Mediterranean Type. — This type comprises many diverse vari- 

 ations, seven of the most important being: (a) discontinuous areas in 

 Mediterranean lands territorially connected; {b) discontinuous areas of 

 which one portion lies along the northern coast of the Mediterranean 

 Sea and the other in northern Africa; (c) one portion located on the 

 mainland of the Mediterranean Basin and the other on islands in the 

 Mediterranean Sea; {d) one portion on the mainland of the Mediter- 



