DICOTYLEDONS. 107 



III. CYDONIA. 



Shrubs ; very similar to Mains, but flowers usually solitary; 

 carpels many-seeded, and fruit tomentose. 



1. C. VULGARIS Pers. Quince. Shrub 6-12 ft. high; leaves 

 oblong-ovate, acute at the apex, obtuse at the base, entire, tomen- 

 tose below ; flowers large, white or pink ; fruit ovoid, tomentose. 

 March- April. 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, glabrous and shining, serrulate ; 

 stipules conspicuous, reniform ; flowers in nearly sessile axillary 

 clusters, bright scarlet ; fruit globose, rare. February- April. Com- 

 mon in cultivation. 



IV. AMELANCHIER. 



Shrubs or small trees with smooth gray bark ; leaves sim- 

 ple, sharply serrate, petioled ; flowers white, in racemes ; 

 calyx tube 5-cleft, adnate to the ovary ; petals oblong ; styles 

 5, united below, ovary 5-celled, 2 ovules in each cell, often 

 only 1 maturing ; fruit small, berry-like. 



A. Canadensis (L.) Medic. Service Berry. A small tree, 

 branches tomentose when young, soon becoming smooth ; leaves 

 ovate to elliptical, finely and sharply serrate, acute at the apex, 

 usually obtuse or cordate at the base ; racemes slender, many-flowered, 

 appearing before or with the leaves ; flowers showy ; petals 4 or 5 

 times the length of the smooth sepals ; fruit globose, dark red, edible. 

 February-March. In rich woods ; extremely variable in height, and 

 in shape of leaves. 



V. CRAT^^GUS. 



Shrubs or small trees, mostly with numerous strong spines, 

 wood very hard ; leaves serrate, lobed or deeply incised, 

 petioled ; flowers white or pink, in terminal corymbs or 

 sometimes solitary ; calyx tube urn-shaped, 5-cleft, tlie limb 

 persistent; petals orbicular; stamens few or many; styles 

 1-5, distinct, ovules 1 in each cell ; fruit a small pome with 

 bony carpels. 



1. C. CRrs-(JALr,i L. CocKspri: Tiioiix. Small trees with 

 spreading branches; spines usually numerous, long and stout, but 



