CITRUS FRUITS AND THEIR CULTURE. 



Fig. 1. Leaves of plants allied 

 to Citrus. A, Murraya exotica. 

 B, Tripbrasia aurantiola. C, Fe- 

 ronia elephantum D, AEgle inar- 

 melos. Two-fifths natural size. 



the highest type of plant in the 

 whole family. While there may be 

 good grounds for the former ar- 

 rangement, the latter appears to be 

 better. 



The leaves of some of the related 

 genera are shown in Figure 1. A. 

 is that of Murraya exotica Linn., 

 a native Indian plant, the leaves of 

 which are compound with a var- 

 iable number of leaflets. B. shows 

 the leaf of Triphasia aurantiola 

 Lour., a plant commonly grown in 

 the gardens of India and other 

 parts of the East and planted to 

 some extent as an ornamental 

 shrub in South Florida. The 

 leaves are trifoliate, accompanied 

 at each node by two sharp, 

 straight, slender spines. C. is an 

 illustration of the leaves of Fero- 

 nia elephantum Correa. they are 

 quite peculiar. The petioles and 

 midribs are winged and in gene- 

 ral the three-parted ones bear a 

 striking resemblance to those of 

 Citrus trifoliata, while those with 

 a greater number of leaflets re- 

 semble a number of C. trifoliata 

 leaves joined together. The leaves 

 are deciduous and the tree is a 

 native of India, where it is also 

 cultivated to some extent. In D. 



