P. cydonia. 



TREES OP THE NORTHERN UNITED STATES 



Fruit large, usually obovate and mainly 

 sunken at the large end ; ripe July to Octo- 

 ber, according to the variety. A pyram- 

 idal-shaped tree, 30 to 70 ft. high, with 

 smooth bark and often somewhat thorny 

 branches. Of several hundred named va- 

 rieties, native to Europe. Cultivated for its 

 fruit. Wood slightly tinged with red; strong, 

 and of fine grain. 



P. communis. 



5. Pyrus cyd&nia, L. (QuiNCE. COMMON 

 QUINCE-TREE.) Leaves ovate, obtuse at base, 

 entire, hairy beneath. Flowers solitary, large, 

 1 in., white or pale rose-color. Fruit large, 

 hard, orange-yellow, of peculiar sour flavor : 

 seeds mucilaginous ; ripens in October. A low 

 tree, 10 to 20 ft. high, with a crooked stem and 

 rambling branches ; from Europe. Several varieties in cultivation. 



6. Pyrus pinnatifida, Ehrh. (OAK- 

 LEAVED MOUNTAIN-ASH.) Leaves pinnately 

 cleft and often fully pinnate at base, hairy 

 beneath. Pome globose, ^4 in., scarlet, 

 ripe in autumn. A cultivated tree, 20 to 

 30 ft. high ; from Europe. 



7. Pyrus Americana, DC'. (AMERICAN 

 MOUNTAIN-ASH.) Leaflets 13 to 15, lance- 

 olate, bright green, nearly smooth, taper- 



P. pinnatfflda. pointed, sharply serrate with pointed teeth. 



Leaf-buds pointed, glabrous and some- 

 what glutinous. Flowers white, ^ in., 

 in large, flat, compound cymes. In June. 

 Fruit berry-like pomes, the size of small 

 peas, bright scarlet when ripe in Sep- 

 tember, and hanging on the tree till win- 

 ter. A tall shrub or tree, 15 to 30 ft. 

 high, in swamps and mountain woods; 

 more abundant northward. Often culti- 

 vated for the showy clusters of berries in 



autumn. P. Americana. 



8. Pyrus sambucifolia, Cham. & Schlecht. (ELDER -LEAVED 

 MOUNTAIN -ASH.) Leaflets oblong, oval or lance-ovate, obtuse 



