Aniba coto

Aniba coto (Rusby) Kosterm. lt. The Plant List; Nectandra coto (Rusby) (lt. The Plant List syn. Aniba coto); Coto cortex (Ainsworth)

from:  http://www.henriettes-herb.com/eclectic/kings/coto.html

“Aniba coto, Palicourea densiflora

The bark of an undetermined South American tree. Aniba coto (Rusby)

Coto bark is exported from the interior of Bolivia, but the tree from which it is derived is unknown. (The bark of Palicourea densiflora, Martius, is known in Brazil under the name Coto-coto). In 1875, Dr. Wittstein received a few pounds for chemical examination, with the statement that it was produced by a species of Cinchona; this was disproved, however, by Harz, after a microscopic examination. In this country, coto bark and not Para-coto bark (see below), in substance, in tincture, or in fluid extract, is always used in medicine.”