TY -JOUR AU -Wisnu H. Ardi AU -Deden Girmansyah AU -Zulfadli AU -Daniel C. Thomas TI -Begonia willemii, a new species of Begonia from Sulawesi, Indonesia PY -2021 DA -2021-08-23 JO -Taiwania VL -66 IS -3 SP -374 EP -377 UR -https://taiwania.ntu.edu.tw/abstract/1772 AB -A new species of Begonia sect. Petermannia (Begoniaceae), B. willemii Ardi, Girm. & D.C.Thomas, is described from Sulawesi, Indonesia. The species is a calciphile endemic to Sulawesi. It is morphologically similar to Begonia gemella but can be easily differentiated by its smaller leaves, a sparse, bristly indumentum on the adaxial lamina surface, simple monochasial male inflorescences, longer pedicels, fewer stamens and two-tepaled female flower. Its conservation status is provisionally assessed as Near Threatened (NT). DO -10.6165/tai.2021.66.374