There is archaeological evidence of their existence

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Unformatted text preview: by the Arawak Indians. There is archaeological evidence of their existence from Mexico, dated 1300-2200 BP. After European contact, groundnuts were dispersed world-wide. The Peruvian runner type was taken to the Western Pacific, China, Southeast Asia and Madagascar. The Spanish probably introduced the Virginia type to Mexico, via The Philippines, in the sixteenth century. The Portuguese then took it to Africa, and later to India, via Brazil. Virginia types apparently reached the Southeast US with the slave trade. Gibbons et al. (1972) noted substantial secondary diversity in Africa and Asia. The types they found and their locations supported these various conjectures regarding dispersal. 2. Taxonomy and Classification The genus Arachis belongs to family Fabaceae, subfamily Papilionaceae, tribe Aeschynomeneae, subtribe Stylosanthinae. This genus is morphologically well defined and distinguished from other genera by having a peg and geocarpic reproductive growth. The genus Arachis has more than 70 wild species, of which on...
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