CONTRIBUTIONS FROM THE NEW YORK BOTANICAL 



GARDEN— No. 19. 



THE AMERICAN SPECIES OF LIMNORCHIS 

 AND PIPERIA. NORTH OF MEXICO 



BY PER AXEL RYDBERG. 



NEW YORK 

 1901 



[Reprinted from Bulletin Torrey Botanical Club, 28: 605-61S. 25 Nov., 1901]. 



