90 



VARIOUS FOOD-PLANTS 



Fig. 9o. — Plum (Primus dottiestica, Rose Family, Rosace€e). Fruiting branch 

 (Nicholson.) — The plant is a small tree with hairy twigs; flowers like 

 those of peach but white; fruit smooth and with a bloom, the stone 

 slightly rough. 



Fk 



■ 96. — Sour Cherry (Pruint.s Cerasitf!, Rose Family, Rosacccc). 1 , flower- 

 ing branch. 2, flower, cut vertically. J, fruit, cut vertically. (Wos- 

 sidlo.) — The plant is a rather low, round-hoadcd tree with gray bark; 

 leaves stiff' and glossy; flowers white or reddish; niostlj- in advance 

 of the leaves; fruit smooth, light or dark red, smooth, without bloom, 

 sour or sometimes sweet in cultivation. This species together with the 

 niazzard cherry (P. Avium) includes most of the varieties of cherry 

 grown for their fruit. 



