Eleven new species of Begonia (Begoniaceae) from the Crocker Range, Sabah, Malaysia

Eleven new species of Begonia ( Begonia alabensis, B. bintang, B. bosuangiana, B. crockerensis B. doloisii, B. flammea, B. inobongensis, B. kinahimiae, B. kipandiensis, B. rambutan and B. tomaniensis ) are described from the Crocker Range, Sabah. Nine species belong to sect. Petermannia and one, B. doloisii , belongs to sect. Baryandra while the section for B. tomaniensis is uncertain. All the species grow within the Crocker Range areas either within or outside the park boundary.