Tetrathylacium Poepp. Nov. Gen. Sp. Pl. 3: 34 (1843) [wfo-4000038010]synonym Edmonstonia Seem. Bot. Voy. Herald : 98 (1853) [wfo-4000045022] T. johansenii Standl. J. Washington Acad. Sci. 15: 479 (1925) [wfo-0001062839] T. macrophyllum Poepp. Nov. Gen. Sp. Pl. 3: 34 (1843) [wfo-0001062824]synonym Edmonstonia pacifica Seem. Bot. Voy. Herald 98 1853 [wfo-0000663243] synonym Tetrathylacium costaricense Standl. J. Washington Acad. Sci. 15: 480 (1925) [wfo-0001062862] synonym Tetrathylacium macrophyllum var. pacificum (Seem.) Triana & Planch. Ann. Sci. Nat., Bot. sér. 4, 17: 106. 1862 [wfo-0001062863] synonym Tetrathylacium nutans Sleumer Repert. Spec. Nov. Regni Veg. 41: 122 (1936) [wfo-0001062957] synonym Tetrathylacium pacificum (Seem.) Standl. J. Washington Acad. Sci. 15: 479 (1925) [wfo-0001062860] Tetrathylacium: Unplaced Names
unknown Tetrathylacium sarayakuorum D.Santam. & Liesner Phytotaxa 423(3): 154. 2019 [wfo-1000001803] unknown Tetrathylacium longirachis D.Santam. & Liesner Phytotaxa 423(3): 148. 2019 [wfo-1000001802] unknown Tetrathylacium vraem Huamantupa Kew Bull. 77(2): 499. 2022 [wfo-1000031091]