Chapter V 



-83- 



Types of Areas 



Liriodendron Tulipifera, Atlantic section of North America— i. 

 chinense, China. 



Hamamelis mollis and H. japonica, Japan — H. virginiana, United 

 States east of the Mississippi (from the Gulf of Mexico to Canada). 



Liquidambar orientalis, Asia Minor, and L. formosana, Formosa, 

 southern China— L. styraciflua, Atlantic section of North America. 



Catalpa hignonioides and C. speciosa, eastern U.S.A. from Illinois 

 to Florida — C. punctata and C. Kaempferi, Japan, and C. Bungei, 

 northern China. 



Torreya nucifera, Japan, and T. grandis, China — T. californica, 

 California, and T. taxifolia, Florida. 



Fig. io. — North Atlantic ranges of: is,Spartina alterniflora; 36, Spartina patens; 

 37, Puccinellia marilima; 38, Najas flcxilis; 30, Spiranthes romanzofiana. (After 

 Fern aid). 



Osmorhiza brevistylis, Himalayas, northern Asia— North America 

 from Canada to the mountains of Carolina in the East and to those of 

 Mexico in the West; 0. laxa, India, O. amurensis, Amur region, 

 Kuznetz Alatau Mts., the Caucasus, and O. japonica, Japan — 0. nuda, 

 0. brachypoda, and 0. longistylis, Atlantic section of North America, 

 and 0. Berterii, 0. chilensis, and O. depauperata, South America (Chile, 

 Argentina). All the species of this genus are close to one another and 

 form a semicircle, extending from the Himalayas over the Bering Sea 

 and along the Cordilleras to southern Chile. 



Sequoia, a genus represented now by but two species, S. gigantea 

 and S. sempervirens, growing only in California. In a fossil state repre- 

 sentatives of this genus have been found throughout all of North and 

 part of South America, and also in Europe, Spitsbergen, and Asia. 



