Caption:
Lewis' monkeyflower or great purple monkeyflower, Erythranthe lewisii. Native to America, Scottish botanist David Douglas sent seeds from North California to the Horticultural Society in 1831. Rosy monkey-flower, Mimulus roseus. Handcoloured engraving from Joseph Paxtons Magazine of Botany, and Register of Flowering Plants, Volume 1, Orr and Smith, London, 1834.