sites in the western Amazon of Brazil. Schultes 3687 established 

 its range to the foothills of the Andes. 



The Kofan Indians employ the root in one of their arrow- 

 poison formulas. They know the vine as su-se'-pa. 



RUBIACEAE 



Calycophyllum obovatum {Ducke) Ducke in Trop. Woods no. 

 49 (1937) 2. 



Colombia: Comisaria del Vaupes, Rio Apaporls, Cachivera de Jcrijerimo and 

 vicinity. Alt. c. 250 m. "Bush." June 13, 1951. Schultes et Cabrera 12474. 



An emetic drink is prepared from the leaves of Calycophyllum 

 obovatum by the Indians residing in the middle course of the 

 Rio Apaporis. It is taken when the frequent food poisoning from 

 eating tainted meat or fish is experienced. 



Calycophyllum Spruceanum {Bth.) K. Schumann in Martius, 

 Fl. Bras. 6, pt. 6 (1889) 191. 



Colombia: Comisaria del Amazonas, Rio Loretoyacu. Alt. c. 100 m. 

 November 1944. Schultes 6ii2. — Puerto Narifio, Rio Loretoyaca. February 

 14, 1973. Glenhuski C-276-A. 



This tree, locally known as capirona and palo mulalo, is 

 employed by the Tikuna Indians as a source of rafters for their 



houses. 



The bark is said to be very astringent and is employed in 



decoction for treating sore throat. 



Cephaelis Humboldtiana Chamisso ex Schlechtendal in Linnaea 

 4 (1829) 136. 



Colombia: Comisaria del Vaupes, Rio Apaporis, Cachivera de Jcrijerimo and 

 vicinity. Alt. c. 250 m. "Bracts red-purple. Bush 2 21/2 feet tall." June 10, 1951. 



Schultes et Cabrera 12499. 



Comisaria del Amazonas. Interior region of Trapecio Amazonico between 

 Amazon and Putumayo watershed. Alt. c. 100 m. "Bush. Bracts red. Flowers 

 white." October 1945. Schultes 6894. 



In the Rio Apaporis, the Karapana Indians prepare a 



Humboldtiana 



malarial fevers. 



363 



