Drynaria bonii ContentDistribution Anatomy Citation Distribution Asia-Tropical, India to China and Indochina present, Langkawi Island present, Penang Island presentIndia to China and Indochina. In Malesia: Penang Island, Langkawi Island. Anatomy Anatomy: Citation Tardieu & C. Chr. 1941 – In: Fl. Indo-Chine. p 517 Roos 1985: Drynarioideae. p 261