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NATURE-STUDY REVIEW 



labellum, as the elongated, triangular, rudimentary stamen here 

 closes the passage. Ultimately it forced its way out thru one of 

 the small orifices close to one of the anthers, and was found when 

 caught to be smeared with the glutinous pollen. I then put the 

 same bee back into the labellvim and again it crawled out thru 

 one of the small orifices, always covered with pollen. I repeated 

 the operation five times, always with the same result. I after- 

 wards cut away the labellimi so as to examine the stigma, and 

 found its whole surface covered with pollen." 



We may further trace the extinction of our native Lady's 

 Slipper orchids to their having to yield ground to the pressure of 

 cultivation, and the presence of a dense population in sections of 



From a painted photograph by the author 

 The Moccasin Flower growing in the woods 



