Tetrathylacium is a genus of two species of shrubs and small trees in the family Salicaceae native to southern Central America and northern South America. Previously it was treated in the family Flacourtiaceae[1] but was moved along with its close relatives to the Salicaceae based on analyses of DNA data.[2]Tetrathylacium is rather unique in the Samydaceae in having tightly arranged panicles of spikes, four sepals and stamens, and non-arillate seeds.[3] The stems are often inhabited by ants, and T. macrophyllum is suspected to have locustpollination.[4]
^Chase, Mark W.; Sue Zmarzty; M. Dolores Lledó; Kenneth J. Wurdack; Susan M. Swensen; Michael F. Fay (2002). "When in doubt, put it in Flacourtiaceae: a molecular phylogenetic analysis based on plastid rbcL DNA sequences". Kew Bulletin. 57 (1): 141–181. Bibcode:2002KewBu..57..141C. doi:10.2307/4110825. JSTOR4110825.
^Sleumer, Hermann (1980). "Flacourtiaceae". Flora Neotropica. 22: 1–499.
^Schmelz, V.; Weber, A. (2006). "Tetrathylacium macrophyllum (Flacourtiaceae/Salicaceae) – the first case of locust pollination?". Beitr. Naturkunde Oberösterr. [abstract]. 16: 577.
