Notes:
This species is characterized by its medium-sized elliptic leaves with developed petioles and the bases cuneate, pyramidal thyrsiform inflorescences, short lobed calyx limbs, and externally pubescent corollas with the tubes 6-7 mm long. It is not well documented. Ixora sparsifolia is circumscribed here provisionally, in particular to include plants from western Colombia and Panama. Those collections are similar in their leaves and general inflorescence characters, but they are found in extremely wet forest while the type of Ixora sparsifolia is from Guayas in western Ecuador, where a number of Rubiaceae species are endemic with limited in distribution and the climate is not all as wet as in western Colombia. However the the flowers of the Colombian and Panamanian plants have not yet been documented, and these plants may represent a second species.
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