What genus honors John Parkinson, Parkinsonia or Rumohra?
Parkinsonia Parkinsonia , also Cercidium , is a genus of flowering plants in the pea family, Fabaceae. It contains about 12 species that are native to semi-desert regions of Africa and the Americas. The name of the genus honors English apothecary and botanist John Parkinson (1567–1650).
Coilostylis parkinsoniana Coilostylis parkinsoniana (Parkinson's Coilostylis), formerly Epidendrum parkinsonianum, is an epiphytic species of orchid in the genus "Coilostylis", occurring in Mexico and Central America.