Allionia incarnata, in the same place where the unfortunate.    From Wordnik.com.  [Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1] Reference

Ionidium itubu, which resembles the Viola, and the Allionia violacea.).    From Wordnik.com.  [Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3] Reference