BLACKTHORN : CHERRY 



311 



Fig. 125. Blackthorn, Prunus spinosa. 1, flowering shoot; 2, fruiting 

 branch; 3, flower in vertical section, enlarged; 4, fruit in section, 

 p. 310 (Wo). 



J # Flowers on long stalks, in umbellate 

 clusters, about 20 30 mm. ; leaves 

 conduplicate ; fruits not pruinose. 



4- Calyx-tube not constricted above; 

 sepals serrate, petals firm; leaves 

 not drooping. 



Prunus Cerasus, L. Cherry (Fig. 126). Tree, with 

 glistening periderm. 



Flowers large, on long pedicels, in umbellate tufts 

 surrounded at the base with small green leaves, white 

 or tinged with pink. Proterogynous, offering pollen and 

 honey. Fruit red to black, sweet but astringent and acid. 



