Antiquity of American Polyploid Cotton

Science  14 Feb 1964:
Vol. 143, Issue 3607, pp. 675-676
DOI: 10.1126/science.143.3607.675


Fragments of a boll of Gossypium hirsutum L. from archeological excavations near Tehuacán, Mexico, prove that this species existed in 5800 B. C. No doubt remains that American tetraploid cotton species originated through natural hiybridization.