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932 gentians, dogbanes, madders, and allies species
Thevetia ahouai
Mandevilla brachysiphon
Chonemorpha fragrans
Mussaenda frondosa
Exostema nitens
Macrocnemum jamaicense
Oldenlandia capensis
Coffea mauritiana
Leptopetalum biflorum
Stenostomum resinosum
Tabernaemontana africana
Coprosma stephanocarpa
Thenardia floribunda
Sabicea villosa
Rauvolfia verticillata
Coprosma cordicarpa
Mascarenhasia arborescens
Anthospermum bicorne
Mandevilla funiformis
Hoffmannia ghiesbreghtii
Adina rubella
Cyclophyllum barbatum
Nauclea orientalis
Rubia cordifolia
Gentiana grandiflora
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