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932 gentians, dogbanes, madders, and allies species
Tabernaemontana pachysiphon
Parsonsia heterophylla
Spigelia hedyotidea
Sommera sabiceoides
Mandevilla macrosiphon
Spermacoce neoterminalis
Hoya calycina
Swertia paniculata
Nertera depressa
Cinchona officinalis
Mitreola sessilifolia
Rachicallis americana
Mussaenda philippica
Bobea elatior
Psychotria psychotriifolia
Gentiana aquatica
Gynochthodes myrtifolia
Zeltnera abramsii
Gardenia brighamii
Galium latifolium
Neuburgia novocaledonica
Coprosma kawaikiniensis
Ixora pavetta
Gonolobus gonoloboides
Gentianopsis barbata
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