Fig. 4
(all images are by A. van der Ent)
Ultramafic edaphic endemics from South and Southeast Asia: a The monotypic tree Borneodendron aenigmaticum (Euphorbiaceae) is endemic to Sabah (Malaysia) on ultramafic soils in the lowlands. b The world’s largest carnivorous pitcher plant, Nepenthes rajah (Nepenthaceae) is endemic to Kinabalu Park in Sabah where it occurs in the montane zone. c The epiphytic or lithophytic orchid Porpax borneensis (Orchidaceae) is restricted to ultramafic outcrops in Sabah, Malaysia. d The recently described Begonia moneta (Begoniaceae) occurs lithophytically in lowland ultramafic forest in Sabah, Malaysia. e Scaevola verticillata (Goodeniaceae) is endemic to the summit of the ultramafic Mount Tambukon in Sabah, Malaysia. f The carnivorous Drosera ultramafica (Droseraceae) is endemic to a limited number of mountainous ultramafic outcrops in Malaysia and the Philippines. g Rhododendron baconii (Ericaceae) is another hyper-endemic restricted to Kinabalu Park, Sabah, Malaysia. h The specific epithet of Pittosporum peridoticola (Pittosporaceae) indicates its habitat is on ultramafic soils in Sabah, Malaysia