12 
£• sinensis has "been confused with this species. Japanese 
nurserymen have for years gro^m P. sinensis under the name 
£• ussuriensis , Meyer, who spent three days with Reimer, 
confirras the foregoing. Reimer now has atout 35 species 
of Pyrus growing at the station. 
12. Pour other species of Pyrus have proved very valu- 
able, tut not wholly resistant to tlight. They are P. 
calleryana . two forms, P. viriolosa. P. ovidea and P. si - 
nensis (Arnold Artoretura 452-8). The P. sinensis from the 
Arnold Arto return may "be a distinct species, as it does not 
resemble. or behave towards blight like the ordinary P. 
sinensis . 
13. Three varieties have proved valuable in the re- 
sistant work. They are "Surprise", from the Missouri Ag- 
ricultural College; Urel (15) from Ames, Iowa; and a sand 
pear from Florida. These are all clean, vigorous growers 
with light, smooth bark, and work readily with nearly all 
varieties tried. 
14. Some species of Pyrus are so susceptible to blight 
that one small infection will take out a row, unless checked, 
P. pashia. of India, seems to be one of the worst species 
to blight. 
15. A combination of Surprise and P. ussuriensis makes 
a fine root and body that nearly all varieties seem to do 
well on. P. ussuriensis furnished the root; Surprise the 
December 31, 1916. 
