Pebas Region of the Peruvian Amazon, and I have freely 
quoted from the final report (unpublished) of this expedition. 
I am pleased to acknowledge the collaboration of my Colom- 
bian colleagues, Prof. Alvaro Fernandez-Perez and Dr. 
Enrique Forero of the Herbario Nacional de Colombia, and of 
Prof. Oscar Tovar of the Universidad Nacional Mayor de San 
Marcos, Lima, as well as the specialists who have identified 
many of the voucher specimens. 
The notes in the following pages are arranged in accordance 
with the Engler & Prantl system. Voucher specimens cited are 
deposited in the Economic Herbarium of Oakes Ames, Botani- 
cal Museum of Harvard University, the Gray Herbarium of 
Harvard University, the Herbario Nacional de Colombia in 
Bogota, the Herbario del Museo de Historia Natural, Lima or 
in several of these institutions. 
It is appropriate to make acknowledgment of the role of the 
National Science Foundation which, through Grant No. 
DEB75-20107, has made possible some of the research re- 
ported in the following pages. The work on the Alpha-Helix 
Expedition was possible through Grant No. DEB72-02536- 
Garey 6-446406-21412. 
HAEMODORACEAE 
Schiekia orinocensis (HBK.) Meissner, Pl. Vasc. Gen. Comm. 
(1842) 300. 
CoLomBiaA: Comisaria del Vaupes, Rio Vaupes, Cerro de Mitu. *‘On 
granite rocks. Flowers deep yellow.’*> September 7, 1951. R.E. Schultes et 1. 
Cabrera 13898. — Rio Vaupés, between Mitu and Javarete. May 14-24, 1953. 
R.E. Schultes et 1. Cabrera 1927. — Rio Vaupes, Mitu and vicinity, Urania. 
‘*Flowers orange. Roots red-orange. On bare granite slope.’’ September 27 - 
October 20, 1966. R.E. Schultes, R.F. Raffauf et D. Soejarto 24325. 
The Kubeo medicine men on the Rio Kuduyari administer a 
tea made of the crushed leaves and roots when they treat a 
condition described as “‘shaking all over’’. 
Nothing apparently is known of the chemistry of Schiekia. 
AMARYLLIDACEAE 
Eucharis amazonica Linden in Illustr. Hort. 28 (1881) 30. 
178 
