Two notable products of the scholarship at the college are the first New World "herbal," and a map of what is now the Mexico City region. An "herbal" is a catalog of plants and their uses, including descriptions and their medicinal applications. Such an herbal, the "Libellus de Medicinalibus Indorum Herbis", was written in Latin by Juan Badianus de la Cruz, an Aztec teacher at the college, perhaps with help from students or other teachers. In this document, the plants are drawn, named and presented according to the Aztec system of organization. The text describes where the plants grow and how herbal medicines can be made from them. This "herbal" may have been used to teach indigenous medicine at the college. The "Mapa de Santa Cruz" shows the urban areas, networks of roads and canals, pictures of activities such as fishing and farming, and the broader landscape context. The herbal and the map show the influence of both the Spanish and the Aztec cultures, and by their structure and style convey the blending of these cultures.