REPORT ON THE CAOUTCHOUC OF COMMERCE. 
11 
NATURAL ORDER. — ARTOCARPACEiE. 
1. American Sources of Supply. 
Castilloa elastica , Cerv., et C. Markhamiana , Collins, species nova. 
Castilloa elastica, Cervantes. — Suplemento a la Gazeta de 
Literatura,* Mexico, 2 de Julio de 1794. Tr6cul sur les 
Artocarp^es, Ann. des Sc. .Nat. 3 e s6rie. Bot. T. 8, PI. 5, 
1847 (Plate 2). 
Vernacular Name.— U16.” 
Geographic Distribution. — Vide post . 
Remarks. — Don Vincente de Cervantes describes the Ule 
tree as one of the loftiest and most luxuriant of the 
forests which adorn the hot north-east coast of Mexico. 
Stem three to four yards in circumference, and very 
straight. Bark smooth, soft, three to four lines thick. 
Branches alternate, horizontal, round, flexible, and 
furnished at the upper end with stiff hairs. Leaves 
alternate, a foot and a half long, and seven inches broad, 
strongly sinuate at the' base, generally terminating in 
a point, pubescent on both surfaces, entire, though 
appearing toothed at first sight, especially the younger 
ones, in consequence of the ^villous brushes fumed by 
the pubescence at the margin of the leaves, and disposed 
at equal distances from each other ; . . . , Eruit 
from 5 to 20 oval drupes. 
* In tie British Museum copy there is no plate of this plant, that of another plant 
being inserted in mistake. There is an English translation of it, and a plate in 
“ Tracts relating to Botany, by Charles Konig. Printed and sold by Phillips and Fardon, 
London, 1805.” The account was given by Cervantes as an inaugural lecture on 
botany, and the plant named after Don Juan del Castillo, who was sent to examine 
the vegetable productions of Mexico, and died in that country in 1793. Cervantes’ 
name of the plant is really Castilla elastica. 
