TAXONOMY 



305 



VI. Order Orchidales. Orchidacece or Orchid Family. Perennial 

 herbs of terrestrial or terrestrial saprophytic or epiphytic growth, 



FIG. 168. Smilax officinalis Portion of vine and rhizome. (Sayre.) 



having grotesque flowers. Roots fibrous or tuberous often sapro- 

 phytic in relation, or aerial and with velamen. Stems and branches 

 20 



