92 ArHYLLON UNIFLORUM. ONE-FLOWERED BROOM-RAFE. 



States who has probably not met with it at some time or another. 

 It flowers in June, and is found in the extreme north of our terri- 

 tory down to Florida, Louisiana, and Texas, as well as all along 

 the States on the Pacific coast. Mr. Sereno Watson collected it 

 in the Wahsatch Mountains in Utah at an elevation of 7,000 feet. 

 It is not yet positively known whether it is an annual or a 

 perennial. 



Explanations of the Plate.— i. The scaly root-stock or stem. 2. Root of an oak sup- 

 porting the parasite. 3. Flower with the corolla divided lengthwise, to show the arrange- 

 ment of the stamens and pistils. 



