80 THE PEARS OF NEW YORK 
8. PYRUS CALLERYANA Decaisne 
1. 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 1000 
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 Kuling 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 I 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,? of Oregon, reports this as a most 
promising stock for the common pear, and Galloway,’ 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. 50:228. 1915. 
2. P. sinensis Hemsley Jour. Linn. Soc. 23:257. 1887, in part. Not Poiret nor Lindley. 
3. Schneider Ii. Handb. Laubholzk. 1:663. 1906. fig. 364 c-d. 
4. PP. simonii Hort. Not Carriére. 
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 
1Rehder, Alfred Proc. Amer. Acad. Arts & Sct. §0:237. 1915. 
? Reimer, F.C. Bull. Com. Hort. Calif. 5:167-172. 1916. 
3Galloway, B. T. Jour. Her. 11:32. 1920. 
