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Cotyledon and Tylecodon.
Nectar sugar composition in the subfamily Alloideaec (Aphodelaceae)
Abstract HPLC analyses of nectar samples from 82 species of the genera Aloe, Astroloba, Chortolirion, Gasteria, Haworthia, Kniphofia, Lomatophyllum and Poelnitzia have shown that the sugarExpand
Notes on Plectranthus (Lamiaceae) from southern Africa
Four new Plectranthus taxa from South Africa are described: P. malvinus Van Jaarsv. & TJ.Edwards, P. saccatus subsp. pondoensis Van Jaarsv. & S.Milstein,  P. purpuratus subsp. tongaensis Van Jaarsv.Expand
Mesembs of the World
Kalanchoe waterbergensis, A new Kalanchoe species from the Waterberg, Limpopo Province, South Africa
Summary: Kalanchoe waterbergensis is described from the western Waterberg margin, just east of Thabazimbi and south of the Kransberg and Marakele National Park (Limpopo Province). KalanchoeExpand
Sagittanthera (Hyacinthaceae, Urgineoideae), a new buzz pollinated genus from the Eastern Cape Province of South Africa
Within the framework of a taxonomic revision of subfamily Urgineoideae, we here describe a new genus from south-eastern South Africa. Sagittanthera gen. nov. is at first sight related to RhadamanthusExpand
Aloe mocamedensis, a new species from the Namib Desert, south-western Angola
Summary: Aloe mocamedensis is described as a new species from the Namib Desert in southwestern Angola. It is allied to A. kaokoensis, but differs from A. kaokoensis by its smaller size and in formingExpand
Analyses of cpDNA matK sequence data place Tillaea (Crassulaceae) within Crassula
Analysis of cpDNA matK sequences for a total of 43 members of the succulent plant family Crassulaceae, including 24 taxa of Crassula, recovered a well-supported clade comprising Crassula species thatExpand
Astroloba robusta P.Reinecke ex Molteno, Van Jaarsv. & Gideon F.Sm. (Asphodelaceae: Alooideae), a new species from the Great Karoo, South Africa
Summary: Astroloba robusta P.Reinecke ex Molteno, Van. Jaarsv. & Gideon F.Sm. (Asphodelaceae: Alooideae) is described as a new species. This species occurs across an extensive geographicalExpand