370 [ THE CHERRY 



(a) Acticena Lin. (sub. P. cerasus) P. nigri- 

 cans Ehrh. = C. avium var. silvestris Ser. in D.C. 

 producing fruit less than r c.m. in diameter, of a purple 

 black colour, the flesh and the juice being blood red. 

 This is an exclusively wild form. 



(b) Macrocarpa Ser. in D.C. The fruit is i c m. 

 in diameter or more, purple-black, with red or blood red 

 juice. Certain forms of cultivated cherries, called ouignes 

 are derived from this or trom the following two forms. 



(c) Rubella Ehrh. The fruit is reddish, the flesh 

 is white or slightly red, and the juice is colourless. 



(d) Dulcis Lin. (sub P Cerasus}. The fruit is of 

 a yellowish white or waxy white colour, and may be 

 flushed red. The juice is colourless and very sweet. 



II. DURACINA Lin. = / > . Cerasus var. bigarella Lin. 

 Cerasus duracina D.C. The fruit is heart-shaped, and 

 the pulp or flesh is firm and rather dry. The juice is 

 colourless or almost colourless, and sweet. To this 

 variety belong most of the cultivated sorts known as 

 bigarreau cherries. (Ita\ia.n=dur0ne. rti\c\i=digarreau). 



III. JULIANA Lin. (sub. P. Cerasus Lin.)=Cerasus 

 Juliana D.C. The tree has a dense habit of growth, 

 the leaves are glabrous on the under surface. The fruit 

 is heart-shaped, sweet, juicy, with rather soft flesh, and 

 may be red, purplish black or white. This is the Gean 

 Cherry or St Julian's Cherry. To this variety belong 

 most of the true cherries. Italian = ciliegio. French 

 cerise (proprement dite). 



2. Prunus Cerastis U\n. = Cerasus vulgar is Mill. 

 C. Ciiproniana Ser. in D.C. The tree is native of central 

 and eastern Europe, the Caucasus, Asia Minor, the 

 region of the Urals and Siberia. This is the common 

 cherry and is a small tree not higher than four or five 

 metres, producing many suckers around the stem and 

 also at considerable distance away from it. The leaves 

 are stiff smooth and shining. The flowers are smaller 



