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ornamental use than the blossoms of most other trees in Porto Rico. 

 Fortunately, the imported varieties which produce fruit of high 

 quality are most desirable as ornamentals, as there is a great vari- 

 ation in the habits of growth and color of the foliage among them. 

 For avenues and boundaries any of the large growing, vigorous kinds 

 are satisfactory, but for planting singly on lawns or in parks varieties 

 suited to the peculiar needs should be selected. For the latter pur- 

 pose Cambodiana, a tall, open tree, with large, light-green leaves 

 tinged with yellow; Davj^'s, a low, compact tree with medium-sized 

 leaves of dark-green color; Madras, a very graceful, symmetrical, 

 upright tree with small bluish-green leaves; and Peters, a round- 

 topped, dense-growing tree with large, very dark-green leaves, are 

 among the varieties which should receive first consideration. 



SUMMARY. 



The common mango of Porto Rico, which is one of the most 

 important fruits of the island, is not cultivated but grows wild in 

 all localities. Superior varieties lately imported have proved satis- 

 factory and should be planted extensively for market and home use. 



Mango trees are adapted to a wide range of soil types and will 

 grow satisfactorily in practically all Porto Rican soils, provided 

 there is a good subdrainage. 



While the climate throughout the island is suitable for the growth 

 of mango trees, in some localities, notably through the interior and 

 along the northern slopes, rains are sometimes too frequent during 

 the blossoming season to permit the setting of a good crop of fruit. 

 Along the western and northern lowlands rainfall is light during 

 the blossoming season and good crops are almost invariably secured. 



As the prevailing winds and morning sun seem to be very bene- 

 ficial, both for growth of trees and setting of fruit, open, exposed 

 sites should be selected for the mango orchard. 



Inarching and bark grafting, simple methods for asexual propaga- 

 tion, are satisfactory both for use in the nursery and for top- 

 working large trees. The important conditions in grafting are that 

 the stock be just starting a new growth, the scion mature, and the 

 buds ready or almost ready to open. 



Large seeds which produce only one plant are most satisfactory for 

 stocks. The East Indian varieties produce larger and more thrifty 

 plants, as a rule, than the native kinds. Both nursery and other 

 mango trees may be transplanted successfully if they are not mak- 

 ing a new growth and rainfall is plentiful. 



The present confusion in the classification of types of mangoes, 

 as well as the great variation in growth and productiveness of trees, 

 and quality of fruit, necessitates a thorough study of varieties before 

 a mango orchard can be successfully planted in Porto Rico. 



