76 SYSTEMATIC POMOIX)GY. 



gritty fruits which are often depressed about the stem, and 

 apple-like ; calyx falls before maturity ; native of China. 



Kieffer, Le Conte, and others, are hybrids with the last. 

 . Of little value for its fruit but of great promise for hybridizing. 

 The introduction of this species in America and the hybrids 

 that have followed have given our pear culture a great and per- 

 manent impetus. Pears derived from P. Sinensis are so "distinct, 

 and are yet so few in number, that a classification of them 

 other than to put them in the so-called hybrid group or Kieffer 

 group is not necessary. 



AN ARTIFICIAL CLASSIFICATION OF PEARS. 

 DIVISIOIT I. SUMMEB PEAHS. 



Class I. — Distinct Pyriform. 



Class II. — Obscure Pyriform, Obovate or Turbinate. 



Class III. — ^Roundish or Oblate. 



DIVISION II. AUTUMN PEABS. 



Class I. — Distinct Pyriform. 



Class II. — Obscure Pyriform, Obovate or Turbinate. 



Class III. — Roundish or Oblate. 



DIVISION III. WINTER PEAES. 



Class I. — ^Distinct Pyriform. 



Class II. — Obscure Pyriform, Obovate or Turbinate. 



Class III.— Roundish or Oblate. 



