Chamaegastrodia inverta (W. W. Smith) Seidenfaden 1994
Chamaegastrodia inverta was first described as Zeuxine inverta by Smith (1921) who collected this species in "shady situations amongst rhododendrons in 7.000 ft (ca. 2.100 m) in West China, Yunnan". Distribution stretches to Sichuan but remains in South-West China. Originally described as "species anomala", this small orchid species was positioned in several genera before Seidenfaden (1994) finally proposed a transloaction to Chamaegastrodia, analysing all kin species. There were only few specimens available for analysis and the systematic position has yet to be fully confirmed, although for now this name is accepted by WCSP (2021). This species has a bilobulate lip nearly twice as long as the simple lip of C. vaginata, which is closest to C. inverta. Superficially the lip is very similar to C. shikokiana, although its operculum is narrowing into a distinct filament while the operculum in C. inverta is sessile with small lateral basal lobules Seidenfaden (1994).