37900. CELTIS SP. A tree about 

 30 feet high and sometimes spreading 

 in habit, related to our native hack- 

 berr3^, found growing on the river 

 ^anks Tr^ r*irapora,Minas, Brazil. The 

 small, Oi auge-colored fruits, about one- 

 fourth inch in diameter, are edible and 

 eagerly sought after by the boys. 



40755. CERATOSTIGMA 

 PLUMBAGINOIDES. Collected 

 by F. ]N„ Meyer, near Siku, Kansu. 

 China. A pretty semi-woody perennial 

 with deep blue flowers, found in dry, 

 rocky places and along slate ledges, 

 at an altitude of 4^500 feet above the 

 sea. Of value as a striking rockery 

 plant. Adapted to the cooler regions 

 of the United States. 



38601. CEREUS TRIANGU- 

 LARIS. Pitaya. From Guatemala 

 City, Guatemala, through O. F, Cook. 

 A climbing cactus with triangular 

 stem; cultivated in tropical America 

 for its refreshing fruit which is egg- 

 'shaped and filled with sweet, deep 

 crimson pulp of the consistency of 

 watermelon and containing many 

 small black seeds. Adapted to the 

 South or southern California. 



