Chimarrhis ferruginea (Standl.) Standl. species synonym

Exostema occidentale Benth. species synonym

Cinchona formosa var. leprosa (Cham. & Schltdl. ex DC.) Brign. variety synonym

Exostema formosum var. leprosum Cham. & Schltdl. ex DC. variety synonym

Cinchona formosa (Cham. & Schltdl. ex DC.) Brign. species synonym

Exostema formosum var. laeve Cham. & Schltdl. ex DC. variety synonym

Exostema formosum Cham. & Schltdl. species synonym

Cinchona formosa var. laevis (Cham. & Schltdl. ex DC.) Brign. variety synonym

Stomandra costaricensis Standl. species synonym

Tresanthera condamineoides H.Karst. species synonym

Tresanthera pauciflora (Soler.) K.Schum. species synonym

Tresanthera condamineoides var. thyrsiflora (Steyerm.) Delprete variety synonym

Tresanthera thyrsiflora Steyerm. species synonym

Rustia grandis K.Schum. species doubtful

Rustia ferruginea Standl. species doubtful

Rustia kosnipatana S.Will & C.M.Taylor species accepted

Rustia rubra Standl. ex D.A.Simpson species accepted

Rustia simpsonii Delprete species accepted

Rustia venezuelensis Standl. & Steyerm. species accepted

Rustia dressleri Delprete species accepted

Rustia haitiensis Urb. species accepted

Rustia occidentalis (Benth.) Hemsl. species accepted

Rustia schunkeana Delprete species accepted

Rustia viridiflora Delprete species accepted

Rustia alba Delprete species accepted

Rustia bilsana Delprete species accepted

Rustia formosa (Cham. & Schltdl. ex DC.) Klotzsch species accepted

Rustia sellowiana Klotzsch species synonym

Rustia mosenii K.Schum. ex Glaziou species synonym

Rustia pohliana Klotzsch species synonym

Rustia thibaudioides (H.Karst.) Delprete species accepted

Henlea splendens H.Karst. species synonym

Rustia secundiflora K.Schum. species synonym

Henlea thibaudioides H.Karst. species synonym

Rustia splendens (H.Karst.) Standl. species synonym

Rustia angustifolia K.Schum. species accepted

Rustia costaricensis (Standl.) Lorence species accepted

Rustia panamensis Dwyer species synonym

Rustia gracilis K.Schum. species accepted

Rustia pauciflora Soler. species synonym

Tresanthera pauciflora K.Schum. ex Soler. species synonym

Exostema formosum var. leprosum Cham. & Schltdl. variety synonym

Exostema formosum Cham. & Schltdl. ex DC. species synonym

Exostema formosum var. laeve Cham. & Schltdl. variety synonym

Rustia warscewicziana Klotzsch species doubtful

Rustia condamineoides (H.Karst.) Kainul. & B.Bremer species accepted

Rustia rubra Standl. species homotypic synonym

Rustia mosenii K.Schum. species homotypic synonym

Rustia rubra Standl. ex D.R.Simpson, 1976 species doubtful