Elandsberg - Hogsback

For James Henry Bowker (1822–1900), South African naturalist and army colonel who took part in the seventh and eighth Cape Frontier Wars (1846–1853). He became an authority on butterflies collected in the Eastern Cape and elsewhere (including plants) together with his artist sister, Mary Elizabeth Barber née Bowker (1818–1899), a noted botanist and entomologist who corresponded regularly with Joseph and William Hooker at the Royal Botanic Gardens, Kew, and Charles Darwin. She sent many plant specimens, many previously unknown, to the herbarium of Trinity College, Dublin and Kew Gardens. She authored scientific papers on botany and entomology and general articles in many fields, including stone-age implements. The Bowkeria name commemorates them both.

For Theodorus Augerius Clutius (Outgers Cluyt) (1577–1636), Dutch botanist, horticulturalist, beekeeper and pharmacist, eldest son of Dirck Outgaertszoon Cluyt (Clutius) (1550–1598) from Delft, an apothecary, curator of the Leiden botanical garden, and an authority on medicinal herbs. Outgers studied and worked with his father in the garden. After his father died he hoped to become his successor, but failed in the attempt. Thereafter, he studied at the University of Montpellier for several years. Between 1602–1608 he travelled to France, Germany and Spain, and also, later, on three occasions to the desert of Barbary in North Africa to increase his knowledge and collect plants for the Leiden botanical garden. Leiden University rewarded him handsomely for his efforts. On his return to the Netherlands (1618), he worked as a physician and during that time worked hard to promote the Amsterdam Hortus Botanicus where he obtained a job against strong opposition. Herman Boerhaave honoured Outgers (and his father) by naming Clutia pulchella after them.

La. crassus = thick; -ula = diminutive; referring to the fleshy succulent leaves.

Origin obscure. Börge Pettison believes the plant was named after Queen Disa who occurs in a Swedish legendary saga. The author, Peter Jonas Bergius, was a Swedish botanist.