FORMS OF COMPOUND LEAVES. 



47 



Fig, 67. TRIPINNATE. HEMLOCK. 



A tripinnate leaf folium tripinnatum (fig. 67). (Frorn 

 *he Latin, tres, three ; and pinna, wing.) Coni'um macula- 

 turn, common hemlock. Common in many parts of the 

 United States. When the common petiole has bipirmate leaves 

 on each side. 



A pinnate leaf, with Ujugate leaves 

 (fig' 68). Folium pinnatum ; foliolis 

 bijugis (from the Latin, bis, two; and 

 jugum, yoke), formed of two pairs of 

 leaflets, as seen in the Cassia absus, of 

 India and Egypt. 



Fig. 68. 



