Titanopsis Schwantes, Sukkulentenk. 4. 78 (1951). 1926

Titanopsis calcarea Schwantes, Zeitschr. Sukkulentenk. 2. 178, 1926

Titanopsis crassipes (Marloth) N. E Brown, Gard. Chron., Ser. 3. lxxxix. 14, 1931

Titanopsis fulleri Tisch., ex Jacobs. Succ. Pl. 249., 1935

Titanopsis hugo-schlechteri Schwantes, Zeitschr. Sukkulentenk. 3. 30, 1927

Titanopsis hugo-schlechteri v. alboviridis  

Titanopsis hugo-schlechteri v. hugo-schlechteri (Tischer) Dinter & Schwantes 

Titanopsis luckhoffii L. Bolus, Notes. Mesembr. Pt. 2. 307., 1931

Titanopsis luederitzii Tisch., Succulenta, 11. 156., 1927

Titanopsis primosii 

Titanopsis schwantesii Schwantes, Zeitschr. Sukkulentenk. 2. 179, 1926

Titanopsis setifera L. Bolus, Notes. Mesembr. Pt. 2. 416., 1933

Titanopsis spathulata Schwantes, Zeitschr. Sukkulentenk. 3. 105, 1927