http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a genus of highly succulent plants, native to South Africa
117 pages : illustrations (part mounted color) portrait, map. ; 25 cm.
Edited by P. G. Jordaan and E. W. Shurly.
"Bibliography and synonomy": pages 111-113.