Cylindrophyllum Cylindrophyllum Schwantes in Z. Sukkulentenk. 3: 15, 28. 1927 sec. Hartmann 20171Type: Cylindrophyllum calamiforme (L.) Schwantes1. Hartmann, H. E. K. 2017 – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: SpringerContentNotes Notes Cylindrophyllum includes five species (Hartmann 2001a), but lacks a taxonomic revision.