212 SYSTEMATia BOTANY. 



Mexican species, F. 

 fulgens, F. cordata, F. 

 corymhiflora, etc. Edi- 

 ble fruits are produced 

 by Trapa natans of 

 Europe, T. bispinosa of 

 India, and T. bicornis 

 ^^ of China. 



8. Myrtacese. Myrtle family. Mostly trees and 

 shrubs, with opposite glandular-dotted leaves ; calyx adhe- 

 rent, stamens indefinite. An important family of eighteen 

 hundred species of the Tropics and Southern Hemisphere. 

 Valuable fruits called Guavas are furnished by Pddium, 

 pomiferum and P. pyriferum of the West Indies, and P. 

 Cattleymiwm of Brazil. The Malay-Apple and Eose- 

 Apple are the fruits of Eugenia malaceemis and F. 

 Jambos respectively, much used in the East. The fruit 

 of F. pimenta of the West Indies, gathered and dried 

 before ripening, is the Pimento, or Allspice, in common 

 use. F. aromaiica is the Clove-tree of the Moluccas, 

 whose flower-buds are collected and dried, and constitute 

 the cloves of commerce. The Brazil-nuts are the rough 

 oily seeds contained in the woody-shelled fruit of Berthol- 

 letia exceka, a Tropical American tree one hundred to one 

 hundred' and fifty feet high. The hard-mottled wood of 

 Myrtus communis, the Myrtle-tree of Western Asia, is much 

 used in turnery. Various species of the vast genus Fuea- 

 lyptus, of Australia and Tasmania, are large and important 

 timber trees; the wood is tough and durable, and much 

 used in structures exposed to sea-water. The Blue-Gum 

 {E. globulus) is bow being planted in California. From 



Fig. 321. Clarkia, a cultivated species. 



