TY - JOUR T1 - Begonia yenyeniae (Begoniaceae), a new species from Endau Rompin National Park, Johor, Malaysia JF - PhytoKeys JO - PK M3 - 10.3897/phytokeys.110.25846 VL - 110 AU - Tan, Joanne Pei-Chih AU - Tam, Sheh May AU - Kiew, Ruth Y1 - 01/11/2018 UR - https://doi.org/10.3897/phytokeys.110.25846 N2 - Begonia yenyeniae is a new species of horticultural value known only from the Endau Rompin National Park, Peninsular Malaysia. It is similar to Begonia rajah with which it had previously been confused in the number of tepals and leaf characters. The new species is compared with three similar species, B. foxworthyi, B. rajah and B. reginula and photographs of all four species and descriptions of B. yenyeniae and B. rajah are provided. Molecular analysis using the ndhF-rpl132 chloroplast marker confirms the four species as distinct. Amongst native species, the three variegated species, B. yenyeniae, B. rajah and B. reginula, are some of the most popular Malaysian begonias in cultivation. Based on its restricted distribution, Begonia yenyeniae, under the IUCN Red List Categories and Criteria, is assessed as Critically Endangered. PB - Pensoft Publishers SP - 23-37 SN - 1314-2011 SN - 1314-2003 IS - ER -