542 



A TEXT-BOOK OF BOTANY. 



Monocarpia Blancoi of Africa and Jamaica. The flowers of 

 Cananga odorata of tropical countries are used in the preparation 

 of a pomade from which the perfume Ylang-ylang is made. 

 Ethereal oils are also found in other species, as Unona ligularis 

 of Ambyona, the seeds of which are used in perfumery. The bark 

 of Popowia pisocarpa of Java contains an alkaloid. 



Fig. 302. Nutmeg trees growing in Singapore. The trees are handsome, evergreen 

 shrubs, extensively cultivated in the East Indies, and to some extent in tropical America. — • 

 Reproduced by permission of The Philadelphia Commercial Museum. 



The seeds of Xylopia salicifolia of Trinidad and X. muricata of 

 Jamaica are very bitter, as are also the wood and bark of X. glabra 

 of the West Indies. 



The seeds of Asimina triloba, the North American papaw 

 (Fig. 301), contains an emetic principle. This plant should not 

 be confounded with Carica Papaya (Caricaceae) which contains 

 the ferment papain. 



Many of the Anonaceae yield large succulent fruits, some of 

 which are edible, as the sugar apple obtained from Anona sqiia- 



