Cheilotheca crocea L.Wu & Yan Liu

This species was collected in 2010 from Damingshan National Nature Reserve north of Nanning, China. This is considerably far apart (2200 km from C. malayana, 1600 km from C. khasiana) from the locations of its closest relatives, taking into account that Cheilotheca spp. became collected only four times before. It is described in Wu et al. (2016) and the epitheton refers to its conspicuous orange petals (crocea after Crocus sativus, the saffron crocus). Cheilotheca crocea is closest to C. malayana, but differs in having stamens of equal length (vs. the outer longer than the inner), two instead of one opening slit of the anthers, and more elongate sepals. The key provided keeps also the  questionable Cheilotheca sleumeriana, however, Wu et al. (2016), based on the description in Keng (1974), assume this species to rather belong to Monotropa. Anyway, due to lack of material, they kept it provisionally in their key. Wallace (1975), in contrast, explicitly rejected C. sleumeriana at the end of his extensive monograph on Monotropoideae in an addendum, and did not mention it in Wallace (1987).