80 THE PEARS OF NEW YORK 



8. PYRUS CALLERYANA Decaisne 

 I. P. calleryana Decaisne Jard. Fruit, 1:8. 1872. 



Rehder ' says of this species, " Pyrus calleryana is a widely distributed 

 species and seems not uncommon on mountains at an altitude of from iooo 

 to 1500 m. It is easily recognizable by its comparatively small crenate 

 leaves, like the inflorescence glabrous or nearly glabrous, and by its small 

 flowers with two, rarely three styles. When unfolding most specimens 

 show a loose and thin tomentum on the under side of the leaves which 

 usually soon disappears, but in No. 1662 from Ruling even the fully grown 

 leaves are loosely rusty tomentose on the midrib beneath. In No. 415a 

 the leaves are longer, generally ovate-oblong, the pedicels very long and 

 slender, about 3 to 4 cm. long and the sepals are mostly long-acuminate. 

 The fruit of No. 556a is rather large, about 1 to 1.4 cm. in diameter, 

 but a fruit examined proved to be two-celled." 



This species is reported from various places in China with western 

 Hupeh as the chief habitat. Reimer, 2 of Oregon, reports this as a most 

 promising stock for the common pear, and Galloway, 3 of the United States 

 Department of Agriculture, says that " Of all the pears tested and studied 

 this remarkable species holds out the greatest promise as a stock." In 

 America it stands the cold as far north as the Arnold Arboretum, near 

 Boston, and endures summer heat as far south as Brooksville, Florida. 

 The plant is reported as vigorous under nearly all conditions. Galloway 

 reports that it can be budded from July 1 to September 1 at Washington. 

 All kinds of pears take well upon it; the seeds are easily obtained, easily 

 grown, and run remarkably uniform. 



9. PYRUS OVOIDEA Rehder 



1. Proc. Am. Acad. Arts & Sci. 30:228. 1915. 



2. P. sinensis Hemsley Jour. Linn. Soc. 23:257. 1887, in part. Not Poiret nor Lindley. 



3. Schneider III. Handb. Laubholzk. 1:663. 1906. fig. 364 c-d. 



4. P. simonii Hort. Not Carriere. 



Rehder, who established this species, says of it: " This species seems 

 to be most closely related to P. ussuriensis Maximowicz which differs 

 chiefly in the broader orbicular-ovate or ovate leaves, in the lighter colored 

 branches, and in the short-stalked subglobose fruit with the persistent 

 sepals spreading. The shape of the fruit of P. ovoidea is very unusual 



1 Rehder, Alfred Proc. Amer. Acad. Arts & Sci. 50:237. 1915. 

 2 Reimer, P. C. Bull. Com. Hort. Calif. 5: 167-172. 1916. 

 'Galloway, B. T. Jour. Her. 11:32. 1920. 



