2. There seems to be a possibility that a wild or feral type of maize is still in existence in Paraguay. A botanical collector in Paraguay with whom we have been in correspondence has sent us a specimen of a maize plant which he claims to have found growing in a colony in a clearing in the forests miles away from human habitation. The specimen was small and earless but bore at the base of the unbranched tassel, pistillate spikelets enclosed in glumes. It differed from any stunted corn which we have previously seen in having the staminate and pistillate portions of the inflorescence distinctly separated. Seed of this peculiar type has not yet been obtained but seed from a variety cultivated by the Guarany Indians in the same general locality gave rise to plants with knobless chromosomes. This is the first variety of maize with knobless chromosomes which we have received from the lowlands of South America. We should, of course, on the basis of our hypothesis expect wild maize to have knobless chromosomes.