Peronocactus ottonis (Lehm.) Doweld in Sukkulenty 2(2): 20. 1999 Peronocactus ottonis (Lehm.) Doweld in Sukkulenty 2(2): 20. 1999is new combination for Cactus ottonis Lehm., Index Sem. (Hamburg): 16. 1827Taxon for this namePeronocactus ottonis (Lehm.) Doweld