Tibouchina longisepala var. spathulata (Brandegee) L.O. Williams Tibouchina longisepala var. spathulata (Brandegee) L.O. Williams in Fieldiana, Bot. 29(10): 581. 1963 sec. Villaseñor & al. 2010=Tibouchina spathulata Brandegee in Univ. Calif. Publ. Bot. 6(4): 58. 1914 syn. sec. Villaseñor & al. 2010