Z PLANT MATERIAL INTRODUCED 



Egyptian Sudan, Kenya Colony, Egypt, Rhodesia, Nigeria, and 

 other parts of tropical Africa. 



Two large shipments from central and southwestern China, pre- 

 sented by the Botanic Garden Division of the Sun Yat-Sen Tomb and 

 Memorial Park Commission, Nanking (Nos. 114700-114823; 116115- 

 116157), were recorded daring this period. These represent seeds of 

 166 species, largely trees and shrubs, many of which are being intro- 

 duced for the first time. In climatic requirements these range from 

 subtropical to north temperate, coming as they do from widely differ- 

 ing regions, and for that reason will be tested in various parts of the 

 South and the Southwest. 



Rice breeders will benefit from the introduction of 121 lots of seeds 

 (Oryza sativa, Nos. 116332-116452) presented by the Rice Research 

 Station, Department of Agriculture, Yanco, New South Wales. 

 These represent recent promising crosses made at that station. 



The Department is indebted to the Union of Soviet Socialist Re- 

 publics for several shipments of plant material, among which three 

 deserve special mention. The Zhitomir Plant Breeding Station pre- 

 sented roots of 22 special types of hops (Humulus lupulus, Nos. 

 115107-115128) ; these are to be tested in the Northwestern States for 

 disease-resistance and for comparison with commonly grown types. 

 The Director of the Botanic Garden at Samara sent in seeds of 149 

 Russian varieties of vegetables, including beets, peppers, cucumbers, 

 watermelons, tomatoes, beans, and peas (Nos. 115141-115289). These 

 have been developed in regions of low winter temperatures, so will 

 be particularly useful to our government plant breeders. The third 

 shipment, presented by the Institute of Plant Industry at Leningrad 

 (Nos. 115320-115416), consists of local selections of forage plants, 

 including both leguminous plants and grasses, obtained originally 

 from all parts of the Soviet Union. 



The botanical determinations of seeds introduced have been made 

 and the nomenclature determined by Paul Russell, who has had 

 general supervision of this inventory. 



B. Y. Morrison, 

 Principal Horticulturist, in Charge. 



Division of Plant Exploration and Introduction, 

 Washington, D. C, March 7, 19Jfi. 



