Ceratostylis longifolia J.J.Sm., drawing J.J. Smith, from von Römer 1291
Ceratostylis longifolia J.J.Sm., herbarium sheet, Roemer, von 1291, isotype specimen (L)
Ceratostylis purpurea P.Royen, herbarium sheet, Brass 11009, isotype specimen (L)
