102 



FOLIA CAROB/E. 



The tree grows to a height of from 30 to 40 feet. The root is 

 externally of a dark red, .internally of a yellowish white color. Tin 1 

 flowers are red and white in showy terminal cymes, and they have 

 an agreeable honey-like flavor ; the fruit is a woody bivalved cap- 

 sule, containing several winged seeds. The stems are considerably 

 branched and produce large compound leaves. The beautiful dark- 

 green leaves are bipinatified, being divided into from six to eight 

 pinnae, while each pinnae is divided into from eight to twelve pin- 

 nules or leaflets. The illustration represents only one branch or 

 pinna of the leaf (see fig. i). The leaflets toward' the end of tin- 

 pinna are seen on the upper side, while the under side shows in the 



E 



. j. Leaflet of Carjba. Cross Section, a, Cuticle. />, Epidermal 

 Cells, c, 1'alisade Cells. <\ Lower Epidermis, f, Oil Drops. 

 //, Epidermal Glands, x 500 diameters. 



others. Each leaflet is oval, sharply pointed at the apex and the 

 base, and with a smooth border. The upper surface of the com- 

 mercial leaflet is dark brown and smooth, while the lower surface is 

 .much lighter in color, and with strongly marked midrib and veins ; 

 and is wooly on close inspection. The wooliness is caused by the 

 presence of numerous long, slender and empty hairs (see a, fig. 2). 

 The hairs are of an unusual length and thickly covered with minute 

 projections of cellulose. 



There are only a few hairs found on the upper surface of the 

 leaf. They are much shorter, broader and only faintly marked with 

 projections. (See b, fig. 2.) 



