house. They should be planted in a mixture of peat and sand in a pot 

 placed within another pot of two inches greater diameter. The space 

 between should be filled with sphagnum moss, which must be kept 

 moist. Rainwater or other soft water should be used. 



The illustrations show the striking coloration of the flowers of the 

 various species of pitcherplants. The petals of some of the varieties last 

 but a short time, but after they drop off, the curious umbrellas which 

 are left on the stem are in some species also brilliantly colored. The 

 fascinating mechanism of the pitchers, or insect traps, are described in 

 detail in Dr. Jones' article which forms a part of this publication, but 

 to illustrate the unusual features of these plants I may mention one 

 strange adaptation. In the hooded pitcherplant, the pitchers are darkened 

 by their arching tops, and to introduce sufficient light to entice insects 

 into the pitchers, the yellow-green tissue of the walls contains a number 

 of white translucent patches which serve as windows. 



Many of the plants were brought into bloom by Dr. Frederick V. 

 Coville in the greenhouses of the Department of Agriculture in Wash- 

 ington. To him, and to Dr. Wherry and Dr. Jones, who have contributed 

 the articles on specific phases of the study of pitcherplants, I extend my 

 sincere thanks, as I do also to those other friends who have gathered 

 the specimens that I have sketched. 



MARY VAUX WALCOTT 



