FIGURE 22. Thrixspermum polystictum. A in Taxonomic notes on Thrixspermum (Orchidaceae: Aeridinae), with five new species from Thailand

FIGURE 22. Thrixspermum polystictum. A. Flower (front view, close-up). B. Flowers (lateral view). C. Dissected perianth. D. Lip (left: adaxial view in natural position; middle: adaxial view when spread out; right: abaxial view when spread out). E. Lip, adaxial view (showing the callus and a large orange warts on the back wall of spur). F. Lip, lateral view (left: natural position; right: longitudinal dissection). G. Column & column-foot with pedicel (ventral, lateral & dorsal views). H. Operculum (left: dorsal view; right: ventral view). I. Pollinia (two pairs). J. Stipe & viscidium. Photographed by Wattana Tanming (A–H) & Nopparut Toolmal (I & J). Illustration assembled by Yongyuth Rattanasootr. A–H from living collection (QSBG) and I–J from spirit collection of N. Toolmal et al. 10092102 TTM 0006428.