5°39- 



(225) 



5032. Another sample of the same. Presented by H. H. Rusby. 



5033. Another sample. Collected by R. Ringe in Bedford Park, New York, 



June 20, 1899. 



5034. ApocynumWdium. — The rootstock and roots of A. medium Greene. Native 



of eastern North America. Collected by H. H. Rusby at Newark, New 

 Jersey, 1899. 



5035. Dogbane. — The rootstock and root of A. androsaemijolium L. Native of 



North America. Collected by H. H. Rusby at Montclair Heights, New 

 Jersey, July 3, 1919. 



5036. Pleurisy root. Asclepias. Butterfly weed. Orange-flowered milkweed. 



The tuberous root of Asclepias tuberosa L. (See No. 3287.) Collected by 

 W. N. Clute in Bedford Park, New York, July 10, 1899. 



5037. False pleurisy root. — The tuberous root of A. curassavica L. Native of the 



southern United States and tropical America. Collected by H. H. Rusby 

 in Maryland. 



5038. False pleurisy root. — The root of A. decumbens L. Native of the eastern 



United States. Same collector. 

 Common milkweed, or silkweed. — The root of A. syriaca L. Native of 

 North America. Collected by A. A. Tyler, at Easton, Pennsylvania, 

 August 12, 1899. 



5040. Madar. Mudar.— The root of Calotropis gigantea (L.) Dryand. Native 



of southern Asia and introduced into tropical America. Presented by 

 the New York College of Pharmacy. 



THE MORNING-GLORY FAMILY (Convolvulaceae) 



5041. Jalap. Jalapa. — The tuberous root of Exogonium Purga (Wend.) Lindl. 



(See No. 2839.) Presented by Parke, Davis & Company, of New York. 



5042. Pure powdered jalap. — The preceding in the powdered state. Presented by 



H. H. Rusby. 



5043. Brazilian jalap. — The tuberous root of Piptostegia Pisonis Mart. Native 



of Brazil. Specimen from the New York drug market. Presented by 

 H. H. Rusby. 



5044. Spurious jalap. — The tuberous root of a Mexican species of Ipomoea. Pre- 



sented by H. H. Rusby. 



5045. Scammony. Scammonium. — The root of Convolvulus Scammonium L. 



(See No. 2833.) From the New York drug market. 



5046. Mexican scammony. Male jalap. — The tuber of Ipomoea orizabensis (Pel.) 



Ledeb. (See No. 2834.) From the New York drug market. Presented 

 by H. H. Rusby. 



5047. Another sample of the same, from the same source. 



5048. Man-root. Man-in-the-ground. — The tuberous root of Ipomoea pandurata 



(L.) Meyer. Native of the eastern and central United States. Collected 

 at Biltmore, North Carolina. Presented by George W. Vanderbilt. 



5049. Cabeza de negro. — The tuberous root of a species of Batatus. Native of 



Brazil. From the Field Museum of Natural History. 



5050. Turpeth root. — The root of Operculina Turpethum (L.) Peters. Native of 



the East Indies. From the New York drug market. Presented by H. H. 

 Rusby. 



