References

For Crassula

Bywater, M. and G.E. Wickens. 1984. New World species of the genus Crassula. Kew Bull. 39: 699-728. Google Scholar

Moran, R.V. 2009b. Lenophyllum. In Flora of North America Editorial Committee. 2009. Flora of North America north of Mexico. Volume 8, Magnoliophyta: Paeoniaceae to Ericaceae. Oxford Univ. Press, New York, NY. 585 pp. Google Scholar

Mort, M.E., C.P. Randle, P. Burgoyne, G. Smith, E. Jaarsveld, and S.D. Hopper. 2009. Analyses of cpDNA matK sequence data place Tillaea (Crassulaceae) within Crassula. Plant Syst. Evol. 283: 211-217. Google Scholar

Thiede, J., and U. Eggli. 2007. Crassulaceae. In Kubitzki, K., C. Bayer, and P.F. Stevens, eds. 2007. The families and genera of vascular plants. IX. Flowering plants – Eudicots – Berberidopsidales, Buxales, Crossosomatales, Fabales p.p., Geraniales, Gunnerales, Myrtales p.p., Proteales, Saxifragales, Vitales, Zygophyllales, Clusiaceae alliance, Passifloraceae alliance, Dilleniaceae, Huaceae, Picramniaceae, Sabiaceae. Springer, Berlin. 509 pp. Google Scholar