Vepris viridis (Rutaceae), a new name for the most frequent and widespread unifoliolate African Vepris sp.

We show that the name Vepris simplex Cheek (Rutaceae) intended to replace the illegitimate V. simplicifolia (Engl.) Mziray, is itself a nom. illeg. & nom. superfl. according to the Code. Therefore, we make the new combination Vepris viridis (I.Verd.) Cheek, Q.Luke & Gereau for the most widespread and frequent species of unifoliolate Vepris in continental Africa, which occurs in the E African rift from Ethiopia to Malawi and is ecologically important as a food plant for elephants.