A 
250 DeCandolles Origin of Cultivated Plants. 
Dioscorea sativa, alata, etc. Yam.—DeCandolle informs us 
that these species, or their allies, are wholly unknown to bota- 
islands, the Spaniards at first gave the name of Name, 
Niame, lgname, Inhame, or other corruptions of a foreign (prob- 
i Vv 
sionally misapplied both to the Yuca and the Batata. 
‘Ecluse, who had traveled in the south of Spain and in 
Portugal, in 1568, says that the Colocasia (CQ. antiquorum) 
“first brought from Africa, was common in many places In 
Portugal, near streams of water, that it was sougbt for by 
negro slaves in Portugal, who ate it both raw and cooked, 
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fields “full of mames [‘these are ajes or batatas,’ notes Las 
unlike ours.” (Navarrete, Colec., i, 200.) These mames are 
- mentioned again, Nov. 6 (7d., 203)—in both places, probably by 
