(217) 



4883. Pure powdered rhubarb. — The preceding, in the powdered state. Presented 



by H. H. Rusby. 



4884. The same, adulterated with starch. Same donor. 



4885. A sample of rhubarb that was not peeled and that was spoiled by excessive 



heat in drying. Presented by H. H. Rusby. 



4886. The small roots and waste pieces removed in preparing the two preceding 



for market. Presented by H. H. Rusby. 



4887. English rhubarb. — Chinese rhubarb grown in England. Presented by 



Merck & Company. 



4888. Rhaponticum. European rhubarb. — The unpeeled rootstock and larger 



roots of Rheum rhaponticum L. Native of Europe and cultivated as "pie- 

 plant." A poor substitute for rhubarb. From the New York market. 

 Presented by H. H. Rusby. 



4889. The same. Presented by Merck & Company. 



4890. Dock. Curly dock. Rumex. — The root of Rumex crispus L. (See No. 



3338.) Collected by R. S. Williams in the New York Botanical Garden, 

 July, 1919. 



4891. Yellow dock. Broad-leaved Dock. False curly dock. — The roots of Rumex 



obtusifolius L. Same home as preceding. Collected by Percy Wilson in 



Bedford Park, New York, July, 1899. 

 4897. Red dock. Bloody dock. Blood-wort. — The root of R. sanguineus L. 



Same home as preceding. From the New York drug market. Presented 



by H. H. Rusby. 

 4893. Canaigre. Wild pie-plant. — The roots of Rumex hymenosepalus Torr., one 

 year old. (See No. 1353.) 



4894. Achyranthes root. — The powdered root of Achyranthes bidentata Blume 



(Amaranthaceae — Amaranthus Family). Native of eastern Asia. A com- 

 mercial sample, presented by H. H. Rusby. 



4895. Poke-root. Phytolacca. Red-ink berry. Pigeon-berry (See No. 1727). — 



Collected by P. Wilson, Bedford Park, New York, June 29, 1899. 



4896. A dried sample of the same. Collected by H. H. Rusby at Newark, New 



Jersey. 



4897. The preceding, cut for use as a drug. A commercial sample. 



4898. Pure powdered Phytolacca, or poke-root. The preceding in the powdered 



state. Presented by H. H. Rusby. 



4899. Petiveria root. — The dried root of Petiveria pentandraGomez. (Same family.) 



Native of tropical America. From Paraguay, through the Field Museum 

 of Natural History. 

 4900. 



4901. A commercial sample of the same from the New York drug market. Pre- 



sented by Parke, Davis & Company. 



4902. Levant soaproot. — The root of Gypsophila Struthium L. (Same family.) 



Native of the Mediterranean region. From the New York drug market. 

 Presented by H. H. Rusby. 



4903. White pond-lily. Water-lily. — The rootstock of Castalia odorata (Dryander) 



Woodv. & Wood {Nympheaceae — Water-lily Family). Native of eastern 



