94 Bo^-Trotting for OrcHids 



Self-fertilization seems impossible to the Rose-col- 

 ored Pogonia, which bears but one flower. The plants 

 must inter-cross. An interesting account of the fertil- 

 ization of this orchid is given at length by Dr. Samuel 

 H. Scudder, ' in the Proceedings of the Boston Society 

 of Natural History. 



' Dr. S. H. Scudder, Proc. Soc. Nat. Hist. Boston, 9 : 1863. 



