The Begonia flora of Gunung Mulu and Gunung Buda National Parks, Sarawak, Borneo, including five new species Author Sang, Julia juliasang@sarawakforestry.com Author Kiew, Ruth ruth@frim.gov.my Author Yiing, Ling Chea juliasang@sarawakforestry.com text Phytotaxa 2018 2018-12-07 381 1 58 79 http://dx.doi.org/10.11646/phytotaxa.381.1.9 journal article 10.11646/phytotaxa.381.1.9 1179-3163 13726112 4. Begonia chlorocarpa Irmsch. ex Sands Plants of Mt. Kinabalu (2001) 149 ; Kiew et al ., Guide to Begonias of Borneo (2015) 74. Type : — MALAYSIA . Borneo. Sabah . Ranau District : Mt. Kinabalu , Liwagu River , 3 September 1961 , Chew , Corner & Stainton 2693 ( holotype K !; isotype SAN n.v. ) . Distribution: — MALAYSIA . Endemic in Borneo ( Sabah and Sarawak ). In Sarawak , the species is recorded from six localities: Marudi District (Bario, Pulong Tau NP and Gunung Mulu NP), Belaga District (Sg. Abit) and Lawas District (Sungai Bo’r and Sg. Dualan) ( Figure 4 ). Habitat: —Hill to lower montane forests at 1000–1500 m elevation on shaded slopes or banks of small streams. Additional specimens examined: — MALAYSIA . Borneo. Sarawak . Marudi District: Pulong Tau NP – NW of Bario, Pearce et al. S 95144 (SAR), S 95826 (SAR); Gunung Mulu NP – Camp 3, Ling et al, SFC 6929 (SAR); Bario, Batu Lawi, Awa S 50490 (SAR); Lawas District: Ravenscourt – Sungai Bor, Ling et al. SFC 5978 (SAR); Belaga District: Danum FMU – Coupe 1, Abit Water Catchment, Ling et al. SFC 8275 (SAR). FIGURE 4. Distribution of Begonia chlorocarpa in Sarawak. Notes: —A robust fleshy herb with large, thick leaves to 35 × 28 cm and densely woolly stems, leaves and petioles, it is the only begonia in Borneo that has a fleshy green, berry-like fruit with thick wings. Tebbitt (2003) drew attention to the wide distribution of the berry-fruited species. For example, Peninsular Malaysian B. longifolia Blume ranges from Java to China . Begonia chlorocarpa is no exception. First described from Gunung Kinabalu and the Crocker Range in Sabah , it has since been collected from several other mountain peaks in Sarawak . It is a new record for Gunung Mulu NP, where it is found at 1450 m elevation.