ANTS. 



which have large pseuclobulbs full of preformed cavities, nearly always 

 tenanted by ants. iVrtain ferns of the genus Lccanopteris from the 

 region, and certain orchids of the genera Grammatophyllum and 



." 5. ,',.,A . J 



FIG. 167. The "Palo Santo" (Triplaris boliviaim) in fruit, from a specimen in the 

 herbarium of the New York Botanical Garden. (Original.) 



Schomburgckia are also cited as providing accommodations for ants 

 in their pseudobulbs. 



3. Ascidiae or Bursae of Leaves and Petioles. The straight or con- 

 voluted leaf-petioles of certain pitcher plants (Nepenthes bicalcarata) 



