(145) 



3287. Pleurisy root. Butterfly-weed root. — The tuberous root of Asclepias tuberosa 



L. (Asckpiadaceae — Milkweed Family). Native of eastern North 

 America. An emergency food of the aborigines. Collected in Essex 

 County, New Jersey, by H. H. Rusby. 



3288. Sweet potato. Camote. (See No. 301 1.) 



3289. Common, white, or Irish potato. (See No. 3013.) From the New York 



market. Presented by H. H. Rusby. 



3290. Chunya negra. Black chunya. — Potatoes frozen and then dried by a 



peculiar Bolivian process, after which they may be kept indefinitely. 

 In this form the skin is retained. From the Bolivian exhibit at the Pan- 

 American Exposition at Buffalo, 1901. 



3291. Tunta dulce. — Another form of the same. 



3292. Chunya of second quality. — The same as the preceding, but with the skin 



partly removed. Obtained in Bolivia by R. S. Williams in 1902. 



3293. Chunya blanca, of first quality. — The same completely skinned and whitened. 



Same source. 



3294. Another sample of the same, from the Buffalo Pan-American Exposition. 



3295. Dried or evaporated potatoes. A commercial sample. 



3296. Potato flour. — The preceding in a finely ground condition. Presented by 



F. Behrend, of New York. 



3297. Another sample of the same. 



THE CHICORY FAMILY (Cichoriaceae) 



3298. Scolymus root. Spanish oyster plant. Golden thistle. — The root of Scoly- 



mus hispanica L. Native of the Mediterranean region and cultivated. 

 Grown by H. H. Rusby at Newark, New Jersey. 



3299. Oyster plant. Salsify. — The root of Tragopogon porrifolius L. Native of 



Europe and Asia and widely cultivated for food. Grown at Sparkhill, 

 New York, in 1906, by Martin M. Ball. 



3300. Another sample of the same. 



3301. Chicory. — The root of Cichorium Intybus L. Native of Europe and culti- 



vated for food and for use as an addition to coffee. 



3302. The same in the dried state. 



3303. The flowering chicory plant. 



THE THISTLE FAMILY (Carduaceae) 



3304. Dahlia roots. — The tuberous roots of various species of Dahlia. Native of 



tropical America and cultivated for ornament. The roots are said to 

 be eaten by the natives of Mexico. 



3305. Jerusalem artichokes. — The tuberous roots of Helianthus tuberosus L. 



Native of Europe and Asia and cultivated for food. Collected in Bronx 

 Park in 1899 by Percy Wilson. 



3306. Another specimen of the same. From the New York market. 



3307. Burdock root. — The root of Arctium LappaL., collected at the close of the 



first season's growth, at Newark, New Jersey, by H. H. Rusby. 



