Tetramerium

Tetramerium is a genus of plants belonging to the family Acanthaceae. It is found in the Americas,^[2] ranging from the southwestern United States to Bolivia,^[1] especially in tropical dry forests.^[3] Christian Gottfried Daniel Nees von Esenbeck first described the genus in 1846 after collecting two species (T. polystachyum and T. nervosum) on the journey of HMS Sulphur.^[3]^[4]

Species

30 species are accepted.^[1]

^ ^a ^b ^c ^d Tetramerium Nees. Plants of the World Online. Retrieved 7 February 2024.
^ Daniel, T. F.; McDade, L. A.; Manktelow, M. & Kiel, C. A. (2008). "The "Tetramerium Lineage" (Acanthaceae: Acanthoideae: Justicieae): Delimitation and intra-lineage relationships based on cp and nrlTS sequence data" (PDF). Systematic Botany. 33 (2): 416–436. doi:10.1600/036364408784571581. S2CID 85891790.
^ ^a ^b Daniel, T. F. (1986). "Systematics of Tetramerium (Acanthaceae)". Systematic Botany Monographs. 12: 1–134. doi:10.2307/25027630. JSTOR 25027630.
^ Nees von Esenbeck; C. G. (1846). "Acanthaceae". In G. Bentham (ed.). The botany of the voyage of H.M.S. Sulphur. London: Smith, Elder and Co. pp. 145–149.

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