Solanum tuberosum L.: Papa, potato. 
While the potato seems scarcely to be considered as a 
pre-Columbian cultivated plant of Mexico, McBryde’s 
observation of a small, semi-cultivated form (‘‘S. andi- 
genum Juz. & Buk. forma guatemalense Buk.’’) in Guate- 
mala, which he considers to be a pre-Columbian intro- 
duction from South America, deserves attention (115). 
If this potato was actually pre-Columbian, it would ap- 
pear that cultivated JS. tuberosum was present in Middle 
America, but that it was not sufficiently attractive to 
the people of this region to spread widely. Close relatives 
of S. tuberosum occur in Mexico and the tubers of wild 
plants were utilized to some extent. Correll (60) inter- 
prets S. tuberosum and S. andigenum as ecological forms 
of one species. (60, 115) 
Spondias purpurea L.: XYocotl, jocote, jobo, ciruela; 
S. Mombin (S. lutea L.): Jobo, cozticwécotl, ciruela 
amarilla. 
The jocote is a widespread and important fruit tree in 
Mexico and Central America. It is easily propagated by 
cuttings and is therefore often grown as a hedge or fence- 
row plant. Spondias, like Jatropha (q. v.), was used as 
a host for the wax-producing coccid insect, awin. iS. pur- 
purea, the better known of the two species, is widespread 
in tropical America and probably native in parts of Mid- 
dle America, and perhaps elsewhere. S. Mombin is gen- 
erally stated to be inferior and less cultivated ; it is prob- 
ably a native of Central America and perhaps also of 
southern Mexico. Both species are highly variable and a 
careful study of Spondias would be most welcome. (1338, 
153, 164*, 191, 192, 194*) 
Tagetes patula L.; T. erecta L.: Cempoalxochitl, 
flor de los muertos, marigold. 
[ 147 ] 
