(229) 



5107. White snake-root. — The root of Eupatorium urticaefolium Rcichard. 



Native of the eastern United States. Collected by H. H. Rusby at Mont- 



clair Heights, July 3, 1919. 

 510S. Colt's-foot root. Radix farfarae. — The rootstock of Tussilago Farfara L. 



Native of Europe and Asia and naturalized in North America. From the 



New York drug market. Presented by H. H. Rusby. 



5109. Pellitory root. Roman pellitory. Feverfew. — The root of Anacyclus Pyre- 



thrum (L.) DC. Native of northern Africa and cultivated for ornament. 

 Presented by Parke, Davis & Company, of New York. 



5 1 10. Adulterated German pellitory root. — The roots of Anacyclus officinarum 



Hayne, native of Germany, adulterated with the stems of the same plant. 

 Presented by H. H. Rusby. 



51 11. False pellitory. — A root of unknown botanical origin, offered in commerce 



as a spurious substitute for pellitory. Presented by H. H. Rusby. 



5 1 12. Burdock root. Arctium minus (Hill) Bern. Native of Europe and naturalized 



in North America. Collected by J. A. Shafer in Bedford Park, New York, 

 August 29, 1906. 



5 1 13. Kidney-root. — The root of Baccharis pilularis DC. Native of the Pacific 



Coast region of the United States and Mexico. From California. 



5 1 14. Elecampane. Inula. — The root of Inula Helenium L. (See No. 2049.) 



From the New York drug market. Presented by H. H. Rusby. 



5 1 15. Atractylis. Chameleon blanc. — The root of Atractylis gummij 'era L. Native 



of southern Europe. Exudes a mastic-like resinous substance. Collected 

 by Vice-Counsul Rice, at Messina, Italy. Presented by the United States 

 Treasury Department. 



5 1 16. Periprives root. — The root of an undetermined plant of Brazil. From the 



Field Museum of Natural History. 



Barks and Woods 



BARKS 



5 1 17. White pine bark. Pinus alba. — The inner bark of Pinus Strobus L. (Pina- 



ceae — Pine Family). Native of eastern and central North America. 

 Presented by Parke, Davis & Company, of New York. 



5 1 18. Larch bark. Tamarac bark. Cortex laricis. The inner bark of Larix 



laricina (DuRoi) Koch. (Same family). Native of northern North 

 America. Same donor. 



5119. Willow bark. Salix. — The bark of Salix alba L. {Salicaceae — Willow 



Family). Native of Europe and Asia and introduced into North America. 

 Collected by H. H. Rusby at Newark, New Jersey, August, 1919. 



5120. Poplar bark. Populus. — The bark of Populus grandidentata Michx. (Same 



family). Collected by W. N. Clute in Bedford Park, New York, July, 

 1899. 



5121. Bayberry bark. Wax-myrtle bark. — The bark of Myrica carolinensis Mill. 



(See No. 161 1.) Collected by P. Wilson in Bedford Park, New York. 

 June 22, 1899. 



5122. Butternut bark. Juglans. — The bark of Juglans cinerea L. (See No. 



4095.) Collected by P. Wilson in Bedford Park, New York, June 20, 

 1899. 



