Comparative distributions and floral morphologies A, B Levenhookia pauciflora, a Western Australian endemic with a brush-tipped labellum and distinctive corolla shape (J.A. Wege 1071 & C. Wilkins) C, D L. preissii, a poorly-known Western Australian endemic with distinctive corolla makings, rounded basal labellum appendages and a white, lopsided column sheath (unvouchered, from NW of Cooljarloo) E, F L. aestiva, a Western Australian endemic with oblong-subulate basal labellum appendages and a pink column sheath (J.A. Wege 2090). Photos by J.A. Wege (B), M. Matsuki (D) and R.W. Davis (F). Scale bar on maps 1000 km.