Protea Cynaroides. Artichoke-like flowered Protea. From: The Botanist, vol. 4, 1840.Rhododendron Caucasico-Arboreum ~ Shewy Hybrid Rhododendron The Botanist; containing accurately coloured figures of tender and hardy ornamental plants; with descriptions, scientific and popular; intended to convey both moral and intellectual gratification. Vol. 4, 1840. | src internet archive