Landolphia shrallonii DeWild. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Apocynaceae genus Landolphia species Landolphia thollonii Name Homonyms Landolphia shrallonii De Wild. Landolphia shrallonii DeWild.