Comparison of four species of Thrixspermum. Living plant of T. taeniophyllum (A), T. japonicum (B), T. saruwatarii (C) and T. pygmaeum (D); Detailed colour photos of T. japonicum (E: a habit b leaves c inflorescence d, e flower in front and back view f1 dorsal sepal f2–3 petals f4–5 sepals f6, h labellum g gynandrium and ovary i anther cap); Type specimens of T. taeniophyllum (F: holotype at CDBI), T. japonicum (G: holotype at L) and T. saruwatarii (H: holotype at TI); and a representative specimen of T. pygmaeum (I: TI). [Images A and E photographed by Min Liao; image B photographed by Yue-Hong Cheng; image C cited from website (https://kevinyu589.blogspot.com/) image D cited from website (https://www.gbif.org/species/2846707); the image of the type specimen of T. japonicum was obtained from JSTOR and those of T. saruwatarii and T. pygmaeum were cited from available from Plants of Taiwan (https://tai2.ntu.edu.tw/search/2)].

 
 
  Part of: Zhang J-Y, Cheng Y-H, Liao M, Liu G-Y, Yang P-Y, Xu B, He H (2023) Thrixspermum taeniophyllum (Orchidaceae, Epidendroideae), a new species from southwest China, based on molecular and morphological evidence. PhytoKeys 230: 145-156. https://doi.org/10.3897/phytokeys.230.104273