Calycophyllum spruceanum (Benth.) Hook.f. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Calycophyllum species Calycophyllum spruceanum Name Homonyms Calycophyllum spruceanum (Benth.) Hook.f. ex K.Schum. Calycophyllum spruceanum (Benth.) Hook.f.