29961, CARAGANA ARBORESCENS. 



Siberian Pea Tree. 



From Dr. David Prain, Kew, England. 



Hardy ornamental shrub, 20 feet 

 high, with yellow flowers, extensively 

 grown in Russia, trimmed low for or- 

 namental hedges. Very drought re- 

 sistant and used by the Russian gov- 

 ernment as a nurse tree in dry, young 

 timber tracts. For testing as an or- 

 namental and as a windbreak. 



CARICA PAPAYA. PAPAYA. 



A small tree native of tropical Amer- 

 ica, with straight trunk and large 

 palmatifid leaves supported by long 

 slender petioles. Usually dioecious, the 

 small fruited kinds are sometimes 

 hermaphrodite. The fruits are globose 

 or oblong, up to 50 cm. in length. The 

 tender salmon-colored meat is rich in 

 digestive properties. May be eaten 

 raw, or cooked as a vegetable unripe. 



30082.CARICA PAPAYA. 



Papaya. 



From C. H. Shamel, Seattle, Wash- 

 ington. 



Soft-wooded tree, 10 feet high, with 

 large, palmate leaves, supported by 

 long, hollow petioles and producing 

 rather small-sized fruits, with meat 

 and flavor resembling musk-melons. 

 Said to mature in eight months. 



26170. CASSIA GRAN DIS, from 

 J. M. Doctor, Bombay, India. 



A tall, leguminous tree attaining a 

 height of 55 feet and producing a very 

 handsome, fine-grained wood. Occurs 

 in many parts of tropical America, 

 where it is frequently planted as an 

 avenue or shade tree on account of its 

 dense foliage. The flowers are pro- 

 duced in April and are very handsome. 

 Will not stand frost. 



21659. CASSIA ROBUST A, from 

 S. M. Tracy, Biloxi, Miss. 



An erect branching legumef rom three 

 to five feet tall, useful as a cover crop 

 for citrus groves on the Gulf Coast. 

 Sown from December to February. It 

 "volunteers" freely, but being an an- 

 nual may be easily eradicated byplow- 

 ing it under before or shortly after 

 flowering. 



CAST! L_ L_ A S P. , 



Rubber Tree. 



Deciduous, soft-wooded tree, 40 feet 

 high, with upright branches and whit- 

 ish trunk, from which a thick, creamy 

 latex is obtained through incisions in 

 its bark and coagulated into com- 

 mercial rubber by varying methods. 

 The trees are ready for tapping when 

 about 8 years old. For testing in com- 

 parison with other rubber producing 

 trees. 



