546 



BOTANY. 



fleshy fruits, each, containing fifty or more oily seeds (Figs. 511-13). 

 The seeds are roasted and then ground, and made into a paste and dried, 

 constituting the Chocolate or Cocoa of commerce, according as vanilla, 

 «ugar, and other substances are, or are not added. Chocolate and Co- 

 <:oa contain Theobromine ^C^ He Ni Oj), an alkaloid similar to Caffeine. 



Order Malvaceae. — The Mallow Family. Herbs, shrubs, and trees, 

 \rith alternate simple leaves ; stamens indefinite, united into a tube ; 



Figs, 514-19.— iLiiTrsTEATioss or Wat.tacej; [Malva sylvestris). 



FiQ. 519. 



Fia. BIT. 

 Fig. 514.— Section of flower. 



Fis. 518. 



Magnified. 



Fig. 516.— Stamen. Magnified. 

 Fig. 618.— Flower diagram. 



Fig. 515.— Androecium. Magnified. 

 Fig. 517.— Calyx and pistil. Magnified. 

 Fig. 519.— Fruit. 



anthers one-celled. Species about 700, vcidely distributed, but most 

 abundant in tropical regions. (Figs. 514^19.) 



Oosaypmm herbaeeum, the common Cotton Plant of tropical and sub- 

 tropical countries, was probably derived originally from some part of 

 India. Its culture by the East Indians and Egyptians was known 

 many centuries before the Christian era. In England the manufacture 

 •and use of cotton cloth began during the latter part of the sixteenth 



