2 PLANT MATERIAL INTRODUCED 



101711, 101891-101902, and 102121-102125) from the Union of Soviet 

 Socialist Republics, and by 13 types of walnuts (102084-102096) 

 from the same country. Attention should also be called to the in- 

 troduction of a collection of scions of what are said to be unusually 

 cold-resistant varieties of the Spanish chestnut from Czechoslovakia 

 (101610-101617). For the ultimate benefit of nut growers, but more 

 immediately for use in chestnut-blight investigations, there are re- 

 corded four lots of seed of different species of Costarica (101587- 

 101607, 101690-101692, 101982-101991, and 102106-102111) received 

 from northeastern China. Most of these are C. mollissima, the Chi- 

 nese hairy chestnut, whose natural resistance to chestnut blight has 

 led to its wide use in hybridizing experiments. 



Plants suitable for growing in the colder and drier areas of the 

 western United States are constantly being sought by this division. 

 It is of interest, therefore, to note two shipments of plant material 

 received during this period from Manchuria. One of these, a collec- 

 tion of hardy forage grasses (101645-101660) from the prairie coun- 

 try near Harbin, Manchuria, introduced for Department specialists, 

 should prove of definite value for the colder areas of our stock-rais- 

 ing States. Another lot of plant material (102289-102309), received 

 also from Manchuria but including hardy trees and shrubs native 

 to many different parts of northeastern Asia, such as maples and 

 hollies from Chosen and northern Japan, will prove interesting 

 additions to the introduced flora of our colder regions. 



In the field of ornamentals, there are two large collections that 

 deserve special mention. These come from England and Scotland, 

 respectively (101736-101797 and 101923-101962 )*, and consist largely 

 of alpine perennials, including numerous species of such genera as 

 Anthcmis, Aquilegiu, and Dianthus. These are all intended for 

 testing at the plant introduction gardens of this Division. 



The botanical determinations were made and the nomenclature 

 determined by the late H. C. Skeels, 1 who had general supervision of 

 this inventory. 



B. Y. Morrison, 

 Principal Horticulturist, in Charge. 



Division of Plant Exploration and Intrpduction, 

 Washington, D. Q., March 30, 193 4.! 



iDied Jan. 3, 1934. 



