say with this observation. In the writers of the colonial 
period ololiuhqui receives frequent mention, especially in 
the T’ratado of Hernando Ruiz de Alarcon. Throughout 
these references there runs a note of sombre poignancy 
as we see two cultures in a duel to death,—on the one 
hand, the fanaticism of sincere Churchmen, hotly pur- 
suing with the support of the harsh secular arm what they 
considered a superstition and an idolatry ; on the other, 
the tenacity and wiles of the Indians defending their 
cherished ololiuhqut. ‘The Indians seem to have won out. 
Today in almost all the villages of Oaxaca one finds the 
seeds still serving the natives as an ever present help in 
time of trouble. 
Thtliltzen — Ipomoea violacea L.* 
Since the appearance of the Schultes paper in 1941, 
and apart from the chemical findings of Dr. Hofmann, 
there has been only one important contribution to our 
knowledge of the morning glory seeds. In 1960 Don 
Tomas MacDougall published his discovery that in vari- 
ous parts of Oaxaca, especially in the Zapotec area, 
another seed is used exactly as ololiuhqui is.” This is the 
seed of asecond morning glory, [pomoea violacea L. In 
Zapotec ololiuhqui is known currently as badoh; the 
* Taxonomically, the genus Ipomoea is extremely difficult. The bi- 
nomial Jpomoea tricolor has already crept into the limited literature 
that has grown up in connection with this second kind of ololiuqui. 
Inasmuch as some confusion may result in the use of two names— 
Ipomoea tricolor and I. violacea—we should point out that, after a study 
of plant material and the taxonomic history of these binomials, I am 
in agreement with the American specialist in the Convoluvulaceae, 
H. D. House (House, H. D.: ‘The North American species of the 
genus Ipomoea’’ in Ann. N.Y. Acad. Sci. 18 (1908) 259), that both 
names actually refer to one polymorphic species. In this case, then, 
the older name is /pomoea violacea L. Sp. Pl. (1753) 161 which should 
be used in preference to its synonym J. tricolor Cav. Ic. Pl. Rar. 3 
(1794) 5, t. 208.—R. E. Scuurres 
