Lithops
Lithops in Gard. Chron., ser. 3, 71: 44. 1922 sec. Cole & Cole 20171 wfo-4000021986
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Notes
Lithops is one of the best known genera among collectors of succulents. Species and subspecies are largely distinguished by the colour and markings present on the flattened leaf tops. The genus was shown to be closely related to Schwantesia, Lapidaria and Dinteranthus by Klak & al. (2013). In view of the close morphological resemblance between the four genera in terms of fruit and floral characters, it needs to be re-investigated whether all of the genera should be maintained.A,B
Bibliography
A. Hernández-Ledesma, P., Berendsohn, W. G., Borsch, T., von Mering, S., Akhani, H., Arias, S., Castañeda-Noa, I., Eggli, U., Eriksson, R., Flores-Olvera, H., Fuentes-Bazán, S., Kadereit, G., Klak, C., Korotkova, N., Nyffeler, R., Ocampo, G. & Ochoterena, H. 2015: A taxonomic backbone for the global synthesis of species diversity in the angiosperm order Caryophyllales. – Willdenowia 45(3): 281-383. https://doi.org/10.3372/wi.45.45301
B. Klak, C., Hanáček, P. & Bruyns, P. V. 2013: A phylogenetic hypothesis for the recently diversified Ruschieae (Aizoaceae) in southern Africa. – Molecular Phylogenetics and Evolution 69: 1005-1020. https://doi.org/10.1016/j.ympev.2013.05.030