Group
I:
Grass Lithops................................................................................................
43
(L. lesliei, aucampiae)
Group II: Upper Gariep Lithops ................................................................................. 73
(L. salicola, hallii, hookeri)
Group III: Transfrontier Lithops ................................................................................. 113
(L. julii, amicorum)
Group IV: Painted Lithops ............................................................................................ 139
(L.
dorotheae, dinteri, olivacea)
Group V: Dotted Lithops .............................................................................................. 159
(L. bromfieldii, fulviceps, verruculosa, localis, coleorum)
Group VI: Calvinian Lithops ......................................................................................... 199
(L. comptonii, otzeniana, villetii, divergens, viridis)
Group VII: Namaqua Lithops......................................................................................... 227
(L. naureeniae, marmorata, helmutii, geyeri, meyeri, herrei, optica)
Group VIII: Hermetic Lithops ......................................................................................... 255
(L. hermetica,
francisci, gesinae)
Group IX: Schwantes’ Lithops .................................................................................... 269
(L. schwantesii)
Group X: Karas Lithops ............................................................................................... 291
(L.
karasmontana)
Group XI: Khomas Lithops .......................................................................................... 321
(L. pseudotruncatella, vallis-mariae)
Group XII: Damara Lithops ........................................................................................... 359
(L. ruschiorum,
gracilidelineata, werneri)