V 
■ t . 
10 REPORT ON THE CAOUTCHOUC OP COMMERCE. 
dry season, and the Caoutchouc which has oozed out, picked off at 
the end of the dry season. It is good but barky. 
French Guiana. 
Eevea Guyanensis , Aubl., abounds here, especially along the Eiver 
Oyapok, the contested boundary line, where the Caoutchouc is 
collected by the Indians and transported to Para. 
Venezuela. 
Caoutchouc is one of the principal articles of export, but it is not 
known under that name in this country. Hevece are said to be 
found rather plentifully. Castilloa, elastica may also exist. 
Peru. 
Under the name of Siphonia Peruviana , n. sp., is a specimen in 
the Ivcw Herbarium, collected by Lechler at San Gavan, in the 
Eastern Cordilleras of Peru. On the ticket there is a note that the 
tree attains 80 feet in height, and that the milk of if is used in 
making waterproof garments. Mr. Markham also (Travels in Peru 
and India) noticed Seringa trees in Peru. 
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