Amyris pacis, a new species from the Magdalena River Valley in Colombia, is described and illustrated, including comments about its geographical distribution, habitat, phenology, conservation status and taxonomic affinities. The new species appears to be closely related to A. trimera due to its unifoliolate leaves and trimerous flowers, but differs from it by its longer leaflet blades with the base rounded to subtruncate, or occasionally subcordate (vs. cuneate), and secondary veins slightly ascending (vs. more strongly ascending). Being a threatened and endemic species, and one of the few species with trimerous flowers, it should be included in further studies to determine appropriate conservation plans and to improve knowledge about the morphology of species with trimerous flowers in Neotropical Rutaceae.

对来自哥伦比亚马格达莱纳河谷的新物种Amyris pacis进行了描述和说明，包括对其地理分布、栖息地、物候学、保护状况和分类学亲和力的评论。新物种似乎与A. trimera密切相关由于其单叶叶和三叶花，但与它的不同之处在于其较长的小叶叶片，基部圆形至近截形，或偶尔近心形（相对于楔形），次脉略微上升（相对于更强烈的上升）。作为受威胁的特有物种，也是为数不多的三叶花物种之一，应将其纳入进一步研究，以确定适当的保护计划，并提高对新热带芸香科三叶花物种形态学的认识。