Orthophytum gurkenii Hutchison  (Incorrectly recorded as 34-18 in Luther & Sieff (rebus 1))

Literature references:

Baensch & Baensch 1994: 31,136 Brom. J. Queensl.: 41(5):24 Bromelia: 6(1-4):42 Bromtravels (Web) Die Bromelie: 1992:24p FCBS (Web) Golinski 1997 J. Bromeliad Soc.: 32:147b 48:27 55:244 Oliva-Esteve 2000a: 149 Palmengarten: 52(s):95 Parkhurst 2000: 138 Seringer 2018b: 91 Steens 2003: 128 Tropiflora Cargo Rep: 13(3) U.S. Nat. Herb. Wien Herbarium, Inst