Priscilla M. Burgoyne

Hammeria is a genus of flowering plants belonging to the family Aizoaceae. It is native to the Cape Provinces of the South African Republic. The genus name of Hammeria is in honour of Steven A. Hammer (b. 1951), American botanist, horticulturist and plant collector and specialist in Conophytum. It was first described and published in Cact. Succ. J. (Los Angeles) Vol.70 on page 204 in 1998. Known species, according to Kew: Hammeria cedarbergensis Klak Hammeria gracilis Burgoyne Hammeria meleagris (L.Bolus) Klak

Frithia humilis is a species of plant in the family Aizoaceae. It is one of the few members of Aizoaceae growing endemic to the summer-rainfall region of South Africa. It is restricted to two provinces of South Africa: Gauteng and Mpumalanga. This small plant consists of a cluster of long, succulent leaves that stick out just above the sandy gravel, with a thickened underground rootstock. The leaves lose water and contract during drought, hiding underground and so preventing more water loss.

Cytinus visseri, commonly known as the Northern vampirecup, is a holoparasitic flowering plant in the family Cytinaceae, native to northeastern South Africa. It is parasitic on several species of plants, but primarily Helichrysum reflexum, a woody shrub in the family Asteraceae.

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