442 MANUAL OF TROPICAL AND SUBTROPICAL FRUITS 



Because of this, the fruit is most commonly used to make jam 

 and preserves. 



Outside of its native region the umkokolo has been planted 

 to a limited extent along the shores of the Mediterranean in 

 France, Algeria, and Italy ; in northwestern Australia ; and in 



Florida and California. 

 In Florida it is said to 

 have succumbed to the 

 cold during the severe 

 winter of 1894-1895, 

 and in California it has 

 been killed by tem- 

 peratures of 16 above 

 zero. The usual win- 

 ter temperatures in the 

 southern parts of both 

 states, however, are too 

 high to injure it, and 

 the species can be 

 grown safely as far 

 north as the Lake re- 

 gion in central Florida 

 and favored sections of 

 the San Joaquin Valley 

 in California. 



Botanically the um- 

 kokolo is a Dovyalis 

 (latterly written Dory- 

 alis), and it is some- 

 times listed as Aberia caffra, Harv. & Sond. Umkokolo is 

 one of the vernacular names of its native region in South 

 Africa. The name kei-apple is often spelled incorrectly kai- 

 apple. 

 The plant is not exacting in its cultural requirements, and is 



FIG. 59. The umkokolo or kei-apple (Dovy- 

 alis caffra) is a large thorny shrub from South 

 Africa, excellent for hedges. (X \) 



