y 
Fig. 5. Diagram of a tassel in level 2. Except for 
the shorter length of its central spike and branches, this 
tassel is almost identical with that of the Peruvian race 
Confite Morocho. cf. Grobman et al., 1961, Fig. 50 
One-fourth actual size. 
all are shorter than those of most varieties of modern corn. The 
spikelets from the three tassels in Level 4 are almost identical 
in their dimensions to the earliest spikelets found in the 
Tehuacan site in Mexico. 
Anthers containing pollen were found in three different tas- 
sels. Mounted in lactic acid the pollen grains swelled to the 
spherical, slightly oval shape characteristic of the pollen of 
modern maize. Pollen from two of the specimens included 
many empty grains, in one case 74 empty, 11 normal; in another 
29 empty: 27 normal. The significance of these empty grains Is 
not apparent. The normal grains from these anthers measured 
233 
