AMERICAN GENERA

I have seen only one species of Arapabaca.
Four-leaved Arapabaca, with twin-lobed fruit original: "fructu testiculato." This refers to the pouch-like shape of the seed pods in Spigelia anthelmia, or Wormgrass.
Arapabaca is an American name. Marcgraf, book 1, page 34. referring to Georg Marcgraf’s "Natural History of Brazil," 1648

ROIOC

Plate 26.

Roioc the species Morinda royoc, known as Red Galley or Mouse’s Pineapple is a genus of plant with a single-petaled monopetalous flower (A), funnel-shaped and divided into many parts, growing from young embryos in this context, the developing fruit or ovaries (D) clustered together into a head. The umbilicus the point of attachment (C) of each embryo is fixed like a nail to the lowest part of the flower (B); the embryo itself then develops into a soft, angular fruit (F), filled with a hard, also angular seed (G); from these individual fruits, a single clustered body (E) is formed.

I have seen only one species of Roioc.
Roioc spread upon the ground, with cypress-like fruit.
Roioc is an American or Spanish name—specifically used by the Spaniards living in America—because they dye fabrics a reddish or yellow color from its root.

VALDIA

Plate 24.

Oviedo

Valdia is a genus of plant with a single-petaled monopetalous flower (A), funnel-shaped, usually three-cleft, which is provided with a double calyx the protective outer layer of a flower: one (B) which wraps around it, and another (C) on which the flower sits. This then develops into a spherical, soft fruit (D), filled for the most part with two oblong seeds (F).

I have recognized only one species of Valdia.
Valdia with a thistle-like leaf and bluish fruit.
Gonzalo Fernández de Oviedo, otherwise known as de Valdés, a Spaniard from Madrid, inhabitant and Governor of Santa Maria in Darien on the American Continent, and Prefect of the Gold Mines, wrote a general and natural history of the West Indies during the reign of King Ferdinand V of Spain. In this work, he included a specific history of many plants growing in America that is worthy of all credit; this may be seen in the third volume of itineraries and navigations: published in Venice from the Giunta press in the year 1556, in folio format.

This is a "signature mark," a printer's guide for folding the sheets of paper into the correct order for binding.