BOTANY AND PLANT ECONOMICS 83 
The Daisy Family (Compositce), 
(See also Cases 504 and 505.) 
Case 55. — While this great family does not yield utilized 
products at all in proportion to its large representation in the 
vegetable world, yet some of them are worthy of mention. 
Note the various specimens representing Chicory (Cichorium 
intybus) the roots of which serve to sophisticate coffee. Note 
also the new Colorado Rubber (Parthenium incanum), a prod- 
uct of the prairie. Fiber produced from the stalks of the com- 
mon Burdock {Arctium lappa). Various medicinal plants; prin- 
cipally Arnica {Arnica montana), Tansy {Tanacetum vulgar e)^ 
Yarrow {Achillea millefolium) and Wormwood {Artemisia 
absinthium) . 
The Castor Bean Family {Euphorbiacece) . 
(See also Cases 480 and 481.) 
Case 56. — A large family of mostly poisonous plants with 
milky juice and peculiar beetle-like seeds of which those of 
the Castor Oil plant {Ricinus communis) are typical. Note 
the extensive series of these oil seeds and oil expressed from 
the same. Note also the Purging Nut {Jatropha curcas). 
Observe the various forms of meal, flour, and starch of Tapi- 
oca, Farinha, Mandioca, and Cassava, from the root of the 
principal tropic American food plant Manihot apii. Note also 
the forms of Cassava “bread” from this source. Observe 
Ceara Rubber from Manihot Glaziovii and Para Rubber from 
Hevea braziliensis. 
The Bean Family (Leguminosce) . 
(See also Cases 49 and 50 and 466 to 473 inclusive.) 
Case 57. — Note Indigo the product of Indigofera anil; 
Tamarinds, the fruit of Tamarindus indica; the odorous Tonka 
Bean {Dipterix odorata) with its vanilla-like aroma; Cutch, an 
extract of Acacia catechu; Kudzu Starch from the seed of the 
Japanese Pueraria Thunbergiana; African Cam or Dye Wood 
{Baphia nitida) ; a number of tan barks and fruits from vari- 
ous species of Acacia, and notably the Tropic American Divi- 
divi {Ccesalpina coriaria). Note also the various oils ob- 
