• Lithops lydiae L. Bolus ex H.Jacobsen

• Lithops fulviceps N.E.Br.
• Mesembryanthemum fulviceps N.E.Br.
• Mesembryanthemum ortendahlii Dinter
• Lithops fulviceps C170 40 km N of Karasburg, Namibia
• Lithops fulviceps C219 (syn. lydiae) TL: 60 km N of Karasburg, Namibia
• Lithops fulviceps C220 TL: 75 km N of Karasburg, Namibia
• Lithops fulviceps C221 85 km N of Karasburg, Namibia
• Lithops fulviceps C266 65 km N of Karasburg, Namibia
• Lithops fulviceps C278 70 km W of Upington, South Africa
• Lithops fulviceps C284 15 km NE of Karasburg, Namibia
• Lithops fulviceps C390 30 km NW of Grünau, Namibia
• Lithops fulviceps C391 25 km NW of Grünau, Namibia
• Lithops fulviceps C415 (pale Form) Near Fish River Canyons, Namibia
• Lithops fulviceps var. lactinea D.T.Cole
• Lithops fulviceps var. lactinea C222 TL: 100 km ESE of Keetmanshoop, Namibia
• Lithops fulviceps var. laevigata D.T.Cole
• Lithops fulviceps var. laevigata C412 TL: 90 km NE of Pofadder, South Africa
• Lithops lydiae L. Bolus ex H.Jacobsen

• Lithops fulviceps C363 Locality unknown (Namibia) cv. Aurea (Y.Shimada) D.T.Cole
• Lithops fulviceps f. aurea Y.Shimada

Bibliography: Major refences and further lectures
1) Heidrun E. K. Hartmann (2002) “Aizoaceae F – Z” Springer
2) Achim Hecktheuer (2008) “Mesembs, mehr als nur Lithops” Books on Demand GmbH Norderstedt. ISBN-13 978-3-8370-1724-3
3) Desmond T. Cole & Naureen A. Cole, Uwe Beyer, Yves Delange (2008) “Les Lithops” SUCCULENTES Spécial 2008 AIAPS (now Terra seca). ISSN 0258-5359
4) Desmond T. Cole & Naureen A. Cole (2005) “LITHOPS Flowering Stones” Cactus & Co. Libri. ISBN 88-900511-7-5 ISBN-13 978-88-900511-7-3
5) Yasuhiko Shimada (2001) “The Genus Lithops” Dobun Shoin. ISBN 4-8103-4066-X
6) Rudolf Heine (1986) “Lithops - Lebende Steine” Neumann Verlag. ISBN 3-7402-0000-6; ISBN-13 978-3-7402-0000-8
7) Bernd Schlösser (2000) “Lithops – Lebende Steine” Praktische Anleitung für die Zimmerkultur. BussinessPoint MEDIA. ISBN 3-934945-01-5; ISBN-13 978-3-934945-01-2
8) Steven A. Hammer (1999) “Lithops – Treasures of the veld” British Cactus and Succulent Society. ISBN 0-902-099-64-7; ISBN-13 978-0-902099-64-7
9) Desmond T. Cole (1988) “Lithops – Flowering Stones” Acorn Books CC. ISBN 0-620-09678-0; ISBN-13 978-0-620-09678-2
10) Rudolf Heine (1986) “Lithops – lebende Steine” Neumann Verlag. ISBN 3-7402-0000-6; ISBN-13 978-3-7402-0000-8
11) David L. Sprechman (1970) “Lithops” Associated University Presses, Inc. SBN 8386-6902-6
12) Gert Cornelius Nel (1946) “Lithops” Hortors Limited, South Africa