Seeds and Seed-Sowing 51 



Central America and the West Indies; for different 

 yams, to southeastern Asia, Pacific Islands, and West 

 Indies. 



Tropical seeds may he procured from dealers in Ceylon, 

 British India, South Africa, and Australia, or by exchange 

 with the botanical gardens in many tropical countries. 

 Subtropical seeds and roots can be had from nurserymen 

 and seedsmen in California, Florida, Cape Colony, Natal, 

 New South Wales, Queensland, Japan, and the Mediterra- 

 nean region. 



