harmine, harmaline and tetrahydroharmine, as well as two 
minor constituents in the modern material. 
As we did with the Spruce material of Banisteriopsis, the 
examination of the seeds of the collection Spruce 119 of 
Anadenanthera peregrina was compared with the analysis of 
similar freshly collected material. For several years, we have 
been studying a colony of beautiful trees of this species — 
obviously planted, perhaps some 40 years ago — in Barrio St. 
Just of Carolina, near San Juan, Puerto Rico. This colony 
grows ona hill immediately behind the El Comandante horse- 
racing track. Our most recent botanical studies on the colony 
were made in the month of December 1974, when the pods are 
still immature. Mature pods for the present analyses were also 
collected from the same colony of trees by Dr. Thomas 
Schubert and Mr. José Zambrana of the United States Depart- 
ment of Agriculture Forest Service, Institute of Tropical 
Forestry, Rio Piedras, Puerto Rico on March 13, 1975, when 
the pods had fully ripened. 
All of our collections from the Puerto Rican site are depo- 
sited in the Economic Herbarium of Oakes Ames in the Har- 
vard Botanical Museum. 
PUERTO RICO: La Carolina, Barrio St. Just, adjacent to 
Hipodromo. ‘‘Tree 60 feet tall. Pods brownish. Cojoba.’’ De- 
cember 8, 1970. R. E. Schultes 26091. — Same locality and 
date. *“‘Seedlings under tree of collection 2609/.' R. E. 
Schultes 26091 A. — Same locality. *‘Tree in grove on hillside. 
Height 70 feet. Pods green-brown, ripening black. Bark with 
large conical spines.”’ December 13, 1972. R. E. Schultes 
26363. — Same locality and date. R. E. Schultes 26364. — 
Same locality. ““Tree 45 feet tall. Secondary forest. Cork 
black.’ December 12, 1974. R. E. Schultes, S. von R. Altschul 
et B. Holmstedt s.n. 
CHEMICAL ANALYSIS 
MATERIAL AND METHODs: The following botanical mate- 
rials will be referred to as below: 
seeds ‘‘December 1972’’— for immature seeds collected 
276 
