Alstonia marquisensis M.Grant Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Apocynaceae genus Alstonia species Alstonia costata Name Homonyms Alstonia marquisensis M.L.Grant ex Fosberg & Sachet Alstonia marquisensis M.Grant