Abstract
Hoya occultata S. Rahayu & Rodda sp. nova (Apocynaceae, Asclepiadoideae) is described from Sulawesi. It is the second species of Hoya from Sulawesi that has a shrubby habit. It resembles H. irisiae, an endemic of the Philippines, also a shrubby species with similar white-yellow flowers and a campanulate-urceolate corolla. The two species, however, differ in peduncle length, corolla and corona size as well as corolla, corona and pollinarium shape.
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