Additional remarks Wittrockia flavipetala was first reported by Leme (2000) as an unpublished species in the supplement study of Wittrockia. It was not formally described because R. C. Forzza (pers. comm.) stated it was under study by her and M. G. L. Wanderley. So, only a full-page color photo of it and commentaries on its distribution and morphological affinities were then presented, as well as a expanded identification key for the genus. According to the identification key presented by Leme (2000), Wittrockia flavipetala is closely related to W. cyathiformis, being distinguished by the shorter scape (23-30 cm vs. 30-55 cm long), involucral bracts and primary bracts green or sometimes reddish at their distal portion (vs. reddish-pink to purplish throughout), shorter primary bracts (ca. 4 cm vs. 7-12 cm long), shorter flowers (ca. 45 mm vs. 55-60 mm long), distinctly shorter sepals (12-15 mm vs. ca. 30 mm long) and by the shorter petals with entire appendages or nearly so (ca. 25 mm vs. ca. 43 mm long; petal appendages denticulate). —SeeLeme & Luther 2010
