Paulus Roetter sketchbook on pines and cactus,
A sketchbook of pencil studies made in 1848 by Paulus Roetter, with George Engelmann and Mrs. S. Mueller also credited, held by the Missouri Botanical Garden, with pine and cactus subjects. The pages are loose pencil sheets of plants drawn for botanical study rather than for publication. The pictures show cactus flowers with radiating spines and a pine branch, drawn in soft graphite shading that a designer could use as a study of natural form, spiky radial patterns, or hand-drawn botanical detail.
