Pelea quadrangularis H. St. John & E. P. Hume , in St. John, Lloydia 7: 273. 1944. Type information: Holotype [BISH]. C.N. Forbes 273.K. August 1909. Kaua`i: Wahiawa Mts, vicinity of Wahiawa swamp. Isotype(s) [BISH!, US!].