116 KEY AND FLORA 
small, pink or purple, in a close panicle. Follicles 5, densely downy, 
several-seeded. On low ground S., and along fence rows and in pas- 
tures N., where it is a troublesome weed.* 
Ill. CYDONIA L. 
Trees or shrubs. Leaves simple, toothed or lobed, stipules 
deciduous. Flowers usually solitary, white or pink. Calyx 
tube urn-shaped, 5-lobed, its epigynous lobes acute, spreading, 
persistent. Petals 5. Stamens numerous, inserted with the 
petals on the calyx tube. Styles 2-5, mostly 5, united at the 
base; ovary 5-celled, seeds many in each cell. Fruit a pome, 
globose, usually depressed or hollowed at the extremities ; 
flesh without hard grains.* 
1. C. vulgaris Pers. Quince. Shrub 6-12 ft. high. Leaves oblong- 
ovate, acute at the apex, obtuse at the base, entire, downy below. 
Flowers large, white or pink. Fruit ovoid, downy. Cultivated.* 
2. C. japonica Pers. JAPAN Quince. A widely branching shrub, 
3-6 ft. high; branches with numerous straight spines. Leaves ovate- 
lanceolate, acute at each end, smooth and shining, serrulate ; stipules 
conspicuous, kidney-shaped. Flowers in nearly sessile axillary clusters, 
bright scarlet. Fruit globose. Common in cultivation.* 
IV. PYRUS L. 
Trees. Leaves simple, stipules small, deciduous. Flowers 
in cymes, large, white or pink. Calyx urn-shaped, 5-cleft, its 
epigynous lobes acute. Petals rounded, short-clawed. Stamens 
numerous, borne‘with the petals on the calyx tube. Styles 5, 
distinct or slightly united at the base. Fruit a pome, with 
about 2 seeds in each carpel.* 
B. Fl. species 2-5 (Malus); species 6 (Aronia); species 
7, 8 (Sorbus). 
1. P. communis L. Pear. A tree, often very large; head usually 
pyramidal, branches often thorny. Leaves thick and leathery, ovate 
or oval, acute, finely serrate or entire, downy when young, becoming 
smooth with age; petioles slender. Cymes few-several-flowered, 
terminal, and at the ends of “fruit spurs” grown the previous sea- 
son. Flowers white. Styles not united. Fruit obovoid, with hard 
gritty grains near the core. A European and Asiatic tree common 
in cultivation,* 
