KEY TO SMALL BUSHY FORMS OF PRUXKS II.) 



variety purple, one of the best purple-leaved plants in culti- 

 vation, especially in the South. PIRI-LE-LEAVEDPLUM Pru- 

 nus cerasffera atropurpurea (P. Pissardi). 



A. Plant usually thorny; fruit, if formed, smooth and glossy with- 

 out bloom ; twigs zigzag in growth ; leaves narrow and pointed, 

 1-2 inches long ; fruit | inch, orange-red with yellow flesh ; bush 

 6-10 feet high. SAND PLUM Pranus angustifolia Watsoni. 

 A. Plant without thorns. (C.) 



C. Fruit, if formed, with dry inedible flesh splitting open and 

 letting out the stone when ripe ; a peach-like tree, 10-20 feet 

 high. There are double-flowered and weeping forms. COM- 

 MON ALMOND Primus Amygdalus. 



C. Fruit smooth, small, globular, purple-red, very sour ; spreading 

 bush 2-4 feet high often grafted on standard stock and used as 

 a weeping tree. DWARF or GROUND CHERRY Pranus fruti- 

 cosa and var. pe"ndula. 



C. Fruit smooth, globular, dark purple Q inch), abundant; bush 

 decumbent at base, but with erect twiggy stems 5-8 feet high. 

 SAND CHERRY (200) Prunus pumila. 



C. Fruit very small, astringent ; small tree w r ith drooping crooked 

 branches ; large pink flowers with notched petals, before the 

 leaves appear; calyx red. ROSEBUD CHERRY or JAPAN WEEP- 

 ING ROSE-FLOWERED CHERRY Prunus pe"ndula. 

 C. Fruit, if formed, covered with hairs like a peach, \ inch, yellow 

 with reddish cheek, not edible. SIBERIAN APRICOT Primus 

 siberica. 



C. Fruit rarely formed ; flowers generally fully double, pink, rose- 

 colored, or white. (D.) 



D. Leaves small, 2-3 inches long, pointed at both ends ; 

 bush 0-5 feet high ; flowers nearly 1 inch broad, usually 

 solitary. RUSSIAN ALMOND Prunus nana. 

 D. Leaves larger, very strongly veined beneath ; flowers 1-3 in 

 clusters before the leaves. JAPAN ALMOND (201) Prunus 

 jap6nica. 

 D. Leaves broad and more or less 3-lobed, flowers solitary. 



FLOWERING PLUM Prunus trfloba. 

 * Leaves deciduous ; flowers in elongated clusters. (E.) 

 E. Bush or tree to 30 feet ; flowers in clusters 2-4 inches long ; fruit 

 the size of peas, dark red and scarcely edible, stone smooth 

 There are dwarf and weeping forms. CHOKE CHERRY (202) 

 Prunus virginiana. 



E. Similar to above and with similar varieties, but the stone in fruit 

 is rough. EUROPEAN BIRD CIIKKUV (203) Prunus Pad us. 

 APGAR'S SHRUBS 10 



