Rathbunia thurberi f. dichotoma P.V.Heath in Calyx 2: 103. 1992 Rathbunia thurberi f. dichotoma P.V.Heath in Calyx 2: 103. 1992is basionym for Stenocereus thurberi f. dichotomus (P.V.Heath) P.V.Heath in Calyx 5: 100. 1996Taxon for this nameRathbunia thurberi f. dichotoma P.V.Heath