BOTANY AND PLANT ECONOMICS 
95 
the forms of Cassava “bread” from this source. Observe Ceara 
Rubber from Manihot Glaziovii and Para Rubber from Hevea 
hraziliensis. 
The Laurel Family {Lauracecje). 
Case 70. — The principal products of this important family 
of mostly odorous plants are those exemplified in this installa- 
tion. Observe the various products of the Camphor Tree of 
China and Japan {Cinnamomum camphor a) , and the method of 
securing this substance. Note that our common Sassafras be- 
longs to the same natural grouping that includes Cinnamon 
{Cinnamomum zeylanicum), and Cassia Bark and Buds from 
Cinnamomum cassia. The principal edible fruit of the family 
is the tropic Alligator Pear {P er sea gratis sima). Note the var- 
ious odorous substances yielding oils utilized in perfumery; 
Puchuri or Sassafras Nuts of Brazil {Nectandra Puchury-minor), 
Benzoin from Laurus Benzoin and others. 
The Sumach Family (Anacardiacece) . 
Case 71. — Left half. An interesting family having many 
useful and several poisonous members scattered in all climates 
of the globe. Among them note the Sumacs {Rhus), of which 
the red-fruited species are innocent and the yellow, papery 
fruited species poisonous. The Japanese Lacquer plant {Rhus 
vernicifera) which yields the poisonous juice so largely used in 
Japanese art. Note the berries and their resemblance to those 
of our Poison Sumac of the swamps {Rhus vernix), and Poison 
Ivy {Rhus radicans) of the sand lots and dune regions. Note 
Japanese Wax, Moku-ro from the seeds of the Lacquer tree 
{Rhus vernicifera) and Ju-ro yielded by those of Rhus suaveo- 
lens. Note the Cashew {Anacardium occidentale) an edible 
fruit (?) with an acrid, poisonous, nut -like seed borne outside; 
and the Mango {Mangifera indica) one of the delicious fruits of 
the tropics. Note also that Pistach Nuts {Pistacia vera) belong 
to this family, as well as the several fine gums that exude from 
wounds made on various species. 
The Cyrilla Family {Cyrillacece) . 
Case 71. — Right half. A small family with but little of 
economic interest among its members. Note the wood of the 
Leatherwood {Cyrilla racemiflora) of the southern United States. 
