Sharp-petaled bletia or pine pink orchid, Bletia acutipetala or Bletia purpurea. Illustration drawn by William Jackson Hooker, engraved by Swan. Handcolored copperplate engraving from William Curtis's "The Botanical Magazine," Samuel Curtis, 1833. Hooker (1785-1865) was an English botanist, writer and artist. He was Regius Professor of Botany at Glasgow University, and editor of Curtis' "Botanical Magazine" from 1827 to 1865. In 1841, he was appointed director of the Royal Botanic Gardens at Kew