A–C Floral bracts A Green and coriaceous in Scaphochlamys klossii B Red and coriaceous in Scaphochlamys pusilla C Scarious and marcescent in Borneocola petiolatus D–F Variegation on labellum D White labellum with purple lines beside the median band in Scaphochlamys malaccana E White labellum with red streaks beside the band in Scaphochlamys concinna F Lilac labellum without coloured streaks beside the band in Borneocola petiolatus. (Photographs by Y.Y. Sam)