SECT. II 



PHANEROGAM I A 



585 



houses (Fig. 573). Large plantations are grown at the Lake of Garda, where the 

 oil is extracted, and here the trees ripen their oval, blackish-blue drupes in October. 

 The widening of the floral axis just below the insertion of the fruit is characteristic. 

 The genus Cinnamomum includes a number of economically important trees such 

 as the Camphor tree from Japan and China (Fig. 574) and the Cinnamon tree from 

 China and Ceylon. The latter is a stately evergreen with smooth, leathery leaves 

 and inconspicuous, greenish flowers in axillary inflorescences. Persea (jratissima 



Fig. 574. — Cinna/momum Camphora {h nat. size). Official. 



(Fig. 571) is a native of tropical Mexico, and is frequently cultivated as a fruit 

 tree in the tropics. Its fruit is known as the Avocado Pear. Species of Cassytha, 

 the only genus of the ftimily including herbaceous species, occur throughout the 

 tropics as parasites resembling Cuscuta. 



Official. — Camphora, Camphor, is obtained from Cinnamormim Camphora. 

 CiNNAMOMi CORTEX and OLEUM ciNNAMOJii from Cinnamoimim zeykmicum. 

 Sassafras radix from Sassafras officinale, a dioecious. North American tree. 



Family 9. Cephalotaceae ('"). — Herbs with pitcher-leaves which capture in- 

 sects in addition to ordinary leaves. Hermaphrodite, hexamerous flowers with a 



