- The Journals of Hippolito Ruiz: Spanish Botanist in Peru and Chile, 1777-1788
- Memoria Sobre La Legítima Calaguala Y Otras Dos Raices Que Con El Mismo Nombre Nos Vienen De La América Meridional
- Florae Peruvianae, Et Chilensis: Sive, Descriptiones, Et Icones Plantarum Peruvianarum, Et Chilensium, Secundum Systema Linnaeanum Digestae, Cum ... Reformatis, Volume 3...
- Hippolyti Ruiz, Regiae Academiae Med. Matrit. Socii, Et Peruvianae Expedit. Botanici Primarii, De Vera Fuci Natantis Fructificatione Commentarius (1798)
- An Illustration of the Genus Cinchona: Comprising Descriptions of All the Officinal Peruvian Barks, Including Several New Species. Baron De Humboldt's ... Memoir On the Different Speies of Quinqu