This oca is a tuberous root (_Oxalis tuberosa_), of an oval shape and pale red colour, but white inside.— The Forest Exiles The Perils of a Peruvian Family in the Wilds of the Amazon
This oca is a tuberous root, of an oval shape and pale red colour, but white inside.— Popular Adventure Tales
ii., p. 55) says, a root called the oca is cultivated in several of the colder provinces of Peru.— The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise ; Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, ;c.; of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, ;c;.
Stevenson ( "Travels in South America," vol. ii., p. 55) says, a root called the oca is cultivated in several of the colder provinces of— The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c.
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