EXPLANATORY NOTE 
PLANT IMMIGRANTS is designed principally to call the 
attention of plant breeders and experimenters to the arrival 
of interesting plant material. It should not he viewed as an 
announcement of plants available for distribution, since most 
introductions have to be propagated before they can be sent to 
experimenters. This requires from one to three years, depending 
upon the nature of the plant and the quantity of live material 
received. As rapidly as stocks are available, the plants de- 
scribed in this circular will be included in the Annual List of 
Plant Introductions, which is sent to experimenters, in late 
autumn. Introductions made for a special purpose (as for example 
to supply Department and other specialists with material heeded 
in their experiments) are not propagated by this Office and will 
not appear in the Annual List. 
Descriptions appearing here are revised and later published 
in the Inventory of Seeds and Plants Imported, -the permanent record 
of plant introductions made by this Office. 
DAVID FAIRCHILD 
Agricultural Explorer in Charge, 
Office of Foreign Seed and Plant Introduction. 
Issued April 4, 1924, Washington, D. C. 
