Distribution and comparison of morphological characters among Gardenia kabaenensis, G.longistipula, and G.mutabilis.
As herbarium materials labeled as G.mutabilis were examined and sorted, they were found to be heterogeneous and included two novelties, G.kabaenensis and G.longistipula, described and illustrated here.
These two new taxa are distinguished from G.mutabilis based on calyx form and tube length, and stipule length.