Studies on Homalomeneae (Araceae) of Borneo XIII - New Species of Homalomena

Fig. 1. Homalomena baangongensis L.S.Tung & Y.C.Hoe. A. Flowering plant in habitat, Type locality. B. Leaf blade (adaxial view) to show bright green, rubbery texture. C. Inflorescence at late pistillate anthesis. Note the conspicuous amber resin droplets on the staminate portion of the spadix. D. Inflorescence at early pistillate anthesis. Three types of insect pollinator are present: The smallest and most numerous are nitidulid beetles, and the solitary deep blue beetle (left top margin of the spathe limb) is a chrysomelid; both are pollen robbers. The large brown beetle on the spadix tip is Parastasia, a ruteline scarab, and the confirmed pollinator. E. Spadix (spathe artificially removed) at early pistillate anthesis. A-H from un-vouchered images. Images © Y.C.Hoe.