‘unlike anything previously reported for Zea Mays’’ has 
strong affinities, if not exact counterparts, among the 
living varieties of Colombia. In 1949, we noted, in a 
group of pop-corn varieties sent from the Department 
of Caldas in Colombia by Dr. J. G. Hawkes, in a pop 
corn received from Dr. R. E. Schultes collected slightly 
north of Buenaventura, and in pop corn purchased by 
the senior author in the market in Bogota, practically 
all of the characteristics mentioned in the description of 
Late Sidewise, including the bluish-green color of the 
leaves and the culms and the distinct bloom which lends 
to the plants a superficial resemblance to sorghum. 
These Colombian pop corns are of unusual ethno- 
graphic and botanical interest. They are known locally 
as maiz indio and, according to Dr. Hawkes, they are 
grown by the Indians in a primitive way, the seed being 
sown broadeast and the crop receiving no weeding or 
cultivation from the time of planting until harvest. A 
similar statement about the method of sowing accom- 
panied the collection made by Dr. Schultes. One of the 
ears (No. 13855) of the Colombian pop corn (inadvertently 
shelled off and put into cold storage before a photograph 
could be made) was almost a duplicate of the ear (Stonor 
No. 18) illustrated in Plate 21 of Stonor and Anderson. 
Of seven distinct samples of kernels of Assamese maize 
sent to the senior author by Dr. Anderson, five could 
be matched almost exactly in size, shape and color with 
Colombian pop corns. The pendent tassels of these corns 
are illustrated in Plate XLVIII. They are of further bo- 
tanical interest because of the slender, lax central spikes 
of the tassel, on which the spikelets are borne in distinct 
whorls separated by conspicuous internodes. The tips of 
the tassel branches often bear solitary staminate spike- 
lets. The plants tiller profusely and have numerous elon- 
gated lateral branches. It was noted in 1949 that: ‘*these 
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